I'm not going to get into a debate over Yobit here as you rightly said I'm not that informed about the taking down of wallets. I know there's been a lot of complaints about support over the years, and that its pretty much non existent. However, this signature campaign is related to their forum, and as long as they're paying their campaign members then there can't be too many complaints. If they were advertising their exchange I can imagine there would be far more users knocking at the door with their pitchforks, and I would hope there wasn't too many users willing to advertise their exchange, because of the recent history. Maybe, once they've proven, and resolved some of the complaints against them in a few years they'll be looked at favorably, but at the moment they are very much branded as the "shady" exchange. This kind of makes one believe that they aren't outright a scam, but possibly have bad support when things do go wrong. Again, I'm not too familiar with the situation, but that's my outsider sort of view with reading information here, and there since I haven't really been actively keeping up with the whole drama revolving around Yobit, and its exchange.
Despite the many complaints that exist on this forum there seems to be a lot of users claiming to have positive experiences including some reputable users. So, without actually using the exchange its hard to make a decision on whether their exchange is outright a scam, because they currently have a lot of users, and one hell of a trade volume. Surely, if they were outright a scam no one would want to use them.
I have a similar sort of viewpoint to Hilarious' post here:
https://bitcointalk.org/index.php?topic=5134204.msg52624469#msg52624469 I have not used yobit and do not use alt coins" ... which section do you moderate??
Just because I know forum policy, doesn't mean I am invested in Altcoins. There's a key difference in being able to delete spam, move topics, and being invested in altcoins. Am I interested in altcoins? A few pique my interest, but more to see where they go technologically rather than being invested in them.
Mostly what the forum is after is moderating the rate at which spam is been produced on the forum which signature campaign is a major contributor to. The involvement of a manager has minimize that problem to some extent guess that's why the adminstrators of the forum haven't taken action.
This campaign is being watched by a lot of users including the admins. If it becomes a problem then you can bet your buck that another ban will be coming their way.
People in this forumboard is partying everyday, the signature campaigns makes it alive and running. The opportunity of this board is limitless. If it dies signature advertisers will look for new traffic sources and they will move on to other crypto forums like cryptotalk.
Signature campaigns definitely don't keep this forum alive, and some might argue are slowly killing the forum. I think there's a way to get them to work without damaging the forum, but that would require a lot of restrictions.