There's no fair treatment, signature participants of yobit, sportsbet, and bitcasino which has been active for over a year were not being tagged because the community think it's the right thing to do.
I don't know much about sportsbet or bitcasino, but there's at least a wee bit of controversy over whether Yobit is truly a scam exchange or not, plus there was some talk about DT members tagging Yobit campaign participants IIRC before the campaign was nuked by Theymos. I suspect that if it continued, somebody would have started tagging Yobit campaigners.
Anyway, this is already being discussed in at least two other threads and many members have given their opinion on the matter. I said I wouldn't be tagging Livecoin campaign participants but wouldn't stand in the way of anyone else doing it. From what I gather, they're pretty scammy and I supported the flag against them, and I don't think members ought to be advertising for them.
If sportsbet and bitcasino are scams and they have campaigns running, their participants are also not being responsible. If they aren't getting tagged, they're just lucky they haven't been.