good luck
I agree, quite a few of the exchanges don't have great support either - Yobit hasn't run off with anybodies money, so can't be classified directly as a scam - a lot of the coins that are hosted on the site can be classed as scammy. Make sure you carefully research before investing in a coin on there that you've never heard of. Lots of profits can be made - but the same also goes for losses...
well the running away part always happens once and when it happens it is already too late. do you think Cryptcy was a scam. you can check the old topics about them and see how much people trusted them and were using their site but they did run away once and for all!
besides there are surely some shady stuff and so many data manipulation are going on with Yobit and you can't deny it.
all I say is that why trust Yobit while there are other better places exist!