Theymos did not ban all the signature campaign and you can still participate on it including yobit but after 2 months from the ban for this one.
It is the fault of yobit, they should hired a manager or at least selected/limited the number of eligible participants.
@safar1980 : lock the topic, it is already solved.
The question is will there be some legit campaign manager who will accept their sig campaign? Maybe most of this campaign managers will be hesitant as to whatever may happen to their service.
In the first place have you also wonder why they haven't done it since the beginning? very shaddy isn't it?