Poloniex is a big exchange and has been with the cryptocurrency market for a long time. It was once the No. 1 market in the market but now has a lot of changes and Poloniex does not have the incentive to attract investors. . At the moment, I also rarely use Poloniex because it has very slow transaction time and high fees.
It might have been on for a very long time, but that does not mean it does not have its flaws and indeed these days, the flaws just keep increasing and I can bet that volume of users have drastically reduced since the loyalty has dropped. There are better exchanges doing things better and with a far better platform and UI, so why will I want to remain in a less developed spot as a user than utilize what is best for me. That is just how I see it now with poloniex.
That's really sad to hear😞 I heard mostly positive reviews about them. But as the time shows, every case is different.
It is possible you have been checking old reviews, try searching for new reviews and you will probably change your mind about them. So far, poloniex has even stopped being a trade name for exchanges in the space compared to before and since the competition is getting even tougher by the day with new exchanges coming up with a better and well performing platform, I guess it gradually became hard for them to catch up.