When using the dexes we must have to be very careful. Holding tokens in exchange is very dangerous. Little mistake enough to lose our coins. Sometimes they aren't our faults. I also saw some bad complaints about IDEX by users. But people still hold their tokens in exchange wallets. Best thing hols your tokens in MEW or other related wallets. But you have to forget the transactions fees. But I think forgetting the small fees is good than the lost whole invested coins. I'm feeling positive at least one person learn something with these results.