which of the three exchanges is most trustworthy to put crypto on
I have made many deposits, withdrawals and trades on stocks.exchange, and while I have not lost any coins, let's just say this exchange is rarely trouble-free. I also really despise how it repeatedly does the Cloudflare DDoS check, even after you've already logged in (I mean, who in their right mind is going to properly log in and
then do a DDoS attack???).
I just signed up on TradeOgre a few days ago mainly to see if any pump-n-dump manipulation occurs, but so far I like the UI a lot more than stocks.exchange and I have deposited two different coins there without incident and with very prompt crediting. Also, no Cloudflare BS. I'll update this thread when I actually do a trade.
I haven't tried SouthXchange and haven't heard much about it so can't give an opinion on that one.
Tradeogre seems to go offline periodically. It is offline right now in fact. This might be due to DDOS attacks rather than site maintenance as there is no message when you try to load their site. Also some people have expressed worry that there is no information about who runs it and no means to contact support or open a ticket, only a twitter handle. Of the three exchanges it is the only one that was not endorsed by the developers, and of the problems with stocks.exchange specifically, sometimes the developers have intervened to try and resolve problems. I personally would be leery of using Tradeogre for these reasons (though I have not used any of these exchanges).