If there's other option for you to trade your BTC-other ALTs, you should've checked other platform to do that if you are not confident transacting in their platform.
I was going to buy ZCL which AFAIK is only tradable on TS, CoinExchange and Bittrex. I am not on Bittrex, and the price on CE was a little higher than TS. So I went there first. I used CE once before and everything was smooth and nice there. Will use them again today. I wish I had ZCL/ANON on Binance/BinanceDEX.
Seems that you already had experience using their platform, preferably you should've avoided using their platform since the admin themselves cannot give you a clear answer to your queries. Their mod should've also had an answer since you are right that moderators should've knowledge about how their platform and operation works.
It's not like I had experience using their platform, I kind of observed their platform for some times before using them to exchange coins.
Anyway, Thank you for your comment mate

Have fun!