If this is not allowed (giveaway thread) then how about bounties that are asking for proof of authentications or asking to post weekly reports? The posters are actually getting incentives (tokens) for posting those reports/proof of authentications.
Posting giveaway threads, and weekly social media links outside the bounty board is not allowed. But there are some users who are lost, and they post their weekly reports on a topic that was posted on ANN Altcoins board which only add as spam.
There are two pinned posts on bounty section that allows us to post our weekly reports:
https://bitcointalk.org/index.php?topic=2284371.0Anyone 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 generate massive amounts of spam, drowning out any legitimate discussion these threads may posses.
https://bitcointalk.org/index.php?topic=3953664.0Accepting 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.