I was wondering this problem. Do you think some ICO are hiring people to comment positively on their ICO post ?
Is it legal under the forum rules
It is not a problem. Those ICO that hire people for signature campaign does instruct bounty hunters to post positive thoughts for their products. They only ask you to wear the campaign signature. Also they did not ask a quite number of post to avoid spam. ICO signature campaign did not break rules or it is not illegal.