Ya there has been a massive issue with them for at least 6 months in the steem and sbd markets. I have never seen them active. All the main exchanges were working fine as far as I know.
The time I was talking about was this time last year when all the prices were on the move and there were big opportunities to trade. I used it to top up my sp which was pretty much non existent at the time.
Posted using Partiko Android
I only know what happened with exchanges and Steem between October 2017 and December 2017... After that I switched to trading other coins as profit for long term trading on Steem in Bittrex was quite good. I just ride the bottoms and tops instead of trying to maximize short term profit.