Incentivizing posting within one or several threads via low effort tasks (e.g. signups or proof of participation for liking, following, subscribing, retweeting, tweeting a single tweet, joining a channel or group, etc.) is not allowed as it falls under the "no altcoin giveaways" rule (https://bitcointalk.org/index.php?topic=2103687.0):


Accepting signups or requiring proof of participation for tasks requiring substantial effort (e.g. signature campaign signups, weekly social media campaign reports, media (videos, images, articles, etc.) bounty signups, etc.) via a thread posted in Bounties (Altcoins) is allowed though.

EDIT: Obviously, participating in such giveaways is prohibited as well.

Anyone posting info from their bounty application (usernames, addresses, etc.) or anything alongside the lines of "joined X", "looking forward to getting X", "thanks for the opportunity", "filled out form", "signed up for X", "applied", "following / liked / retweeted X" when such data is not required or the requirement is against the forum's rules risk having their account banned. These are extremely low quality posts that generate massive amounts of spam, drowning out any legitimate discussion these threads may posses.