Promising, not, it is terrible instead. I would like to use the word 'promising' only if campaigns bring at least two good things: good payments for participants, and high quality posts from participants, not spam globally in the forum.
By now, there will be no Yobit signature in the forum within next 60 days. I think it is good time to lock the topic, when it has fully serves its purposes. Maybe, it should be unlocked next 60 days or even long when Yobit run their next campaigns in the forum.