Yobit used a similar style and didn't care some much about what type of account enrolled for their campaign, scammer or not scammer, spammer or not spammer. Worse still, their campaign model encouraged spam. The more one would spam, the more sats they would earn, so this lead to their signatures getting banned in the forum.

1xbit has survived getting banned probably because there is a weekly cap to their posts but still most of the farmed accounts make useless spam anyway