I'm late to the conversation- but I'm pretty disappointed this ban took place. Signatures have always been a topic of controversy and I've always been a strong proponent. I think that the world is shifting to a global, digital economy that crypto will be the backbone of. Micro-jobs like sig campaigns are laying the foundation and connecting individuals in third world and developing countries to legitimate earning incentives. The calm before the storm, if you will.
I'll leave my opinion on Yobit aside, but I don't think it's a sound precedent to outright ban particular campaigns or signatures. It could have been handled on an individual basis, with spammers being banned. I get that it's more hassle that way but last I checked this forum has no shortage of resources. Fingers crossed this doesn't lead to more signature or discussion bans in the future.