have been using poloniex for over 2 years now, always a viable open for US citizens, only issue I\'ve ever had was they did not allow Siacoin withdrawals for a couple months. No other issues, fast withdrawals, fast deposit credits, easy trading interface
by  terrybuzato,9 Mar 2018
Source: www.cryptocompare.com
In the time I used Poloniex, I personally never had any issues with the exchange. Still, the widespread issues brought up on forums and from friends were enough to make me withdraw my funds and use different sites. If you’re looking for a site very similar to Poloniex, I’d recommend using Bittrex instead. If you’re just looking for a simple way to buy your first cryptocurrency, I’d recommend Coinbase or another option. I would strongly caution those of you thinking about using Poloniex. Their customer support has been known to take as long as 90 days to respond.
by  Casey Brewer, 12 Aug 2017
Source: coincentral.com
Can`t understand whats going on with this exchange, was one of the best exchange, till u need to solve issues withdrawal / deposit , one cold morning, i did deposit to Poloniex write everything what i had to write, suddenly noticed that coin isint arriving to my acc, did another transfer to check or its just delaying, another transaction were successful and i had coins after few verification in Poloniex acc, filled ticked form that i didnt received my coins named as deposit issue, made a print screen with whole information that i send from personal wallet, that these coins arrived to their waller, made a explorer print screen, wroted everything that i think its necessary, after 30 days filled another ticket that i need my coins and how long do u need to solve deposit issue they, deleted second ticket and answered to first one, that they need proves print screens and so on. i did answered them that already whole information is over here u just need to read up everything what i write. just received that we are working to solve this issue, and we will contact u as soon as possible. another 30 days passed and no one is answering my questions, they are just ignoring me. AVOID THIS EXCHANGE
by  F08323F8, 22 Mar 2018
Source: www.cryptocompare.com
Still not got my deposit after 7 months and never get any reply from customer service. Unbelievable how this scam still can have any credibility in the market.
by  johannesrygh,22 Mar 2018
Source: www.cryptocompare.com
Poloniex is not serious about their communication. It’s been several weeks I make a huge amount deposit and I still haven’t got any amswer on the many tickes I made. No reaction and a huge amount is lost somewhere. I read this is a common issue on poloniex, and their lack of response makes it a very insecure platform to use.
by  elea_hohweiller,19 Mar 2018
Source: www.cryptocompare.com
AVOID POLONIEX. Apparently they have stolen my coins. And stolen coins from hundreds of others. I made a deposit to the correct address and nothing has appeared in my account. I have full documentation including screenshots of the entire process and 100’s of confirmations on the blockchain. The deposit does not show up in my account after several weeks and Poloniex does not even acknowledge support tickets. I posted the full documentation and have requested updates, but not even a single response from Poloniex. I made a complaint the the Better Business Bureau, but the the BBB says they cannot get in touch with them and it appears that they are out of business. POLONIEX seems to be a SCAM. Just search POLONIEX SCAM and you will get a very large number of hits. I don’t know why the authorities have not shut this down yet.
by  jrogers, 5 Mar 2018
Source: www.bestbitcoinexchange.io
Poloniex = Big problem I extremely don\'t recommend POLONIEX. I\'ve attempt to transfer BTC on 26 dec.2017 at 21:41h and it\'s AWAITING APPROVAL SINCE ALMOST 10 DAYS Due the delay the transfer is useless now and I try to cancel it but costumer service is completely death Support ticket 641129 For my surprise I try to login today and I got message that I\'m banned from access poloniex, so I have completely no access to my assets already devalued and plus the losses of 10 days of no trade. :( Please If any one can help me , I can\'t sleep since it happened
Source: www.forexbrokerz.com
I WOULD RATE THIS EXCHANGE AS A SCAM. I transferred Eth to Poloniex and it did not show up in my account. I logged a ticket with Poloniex 3 days ago, but no reply. Infact, the ticket I logged 2 months ago still has not received a response. This is a very risky exchange to send crypto to, there is a good chance of losing your funds. They clearly do not provide customer support, so if something goes wrong, you are on your own. After this happened to me, I searched if it had happened to anyone else and found hundreds of similar complaints. I am still unable to confirm if anyone eventually received their deposit. I will not use this Exchange anymore.
by  ajurekic, 26 Feb 2018
Source: www.cryptocompare.com
Poloniex’s huge trading volumes suggest that it actually operates smoothly and without problems for the majority of users. But public opinion and complaints do make me think twice about the exchange. The brilliant access to altcoins and trading pairs is a real upside, but if you can’t withdraw your funds, then it’s all a waste of time. Perhaps Poloniex’s sheer volume and popularity are stifling its problem-solving and customer support efforts. There’s a wide range of competition now, so you may want to look at some other options—especially if you’re simply wanting to deal with major cryptocurrencies such as Bitcoin, Bitcoin Cash, Ether, and Litecoin.
by  Eliot Prince, 16 Feb 2018
Source: 99bitcoins.com
Yes it’s true that Poloniex are loosing a good deal of their customers in recent times. Most people just say they have had enough of down-times and absent customer support. It looks like Bittrex has recuperated most of Poloniex’s exodus – from the spike in monthly traffic levels
by  BestBitcoinExchange, Nov 2018
Source: www.bestbitcoinexchange.io