But there is another reason why admins might be looking the other way.
The forum culture is generally dying out. People don't want to write on online forums as much as they did before. The press board (spammy as it is) still generates traffic in the same way that the altcoin boards do. The admins might not be willing to put another nail in the coffin by deleting a massive amount of threads in the altcoin and press boards and start banning more people. After all, "all publicity is good publicity".
Not all publicity is good publicity in my opinion.
Most of the traffic generated in those boards (press and altcoin) are from spammers and bounty hunters who do not care about the forum, but are only interested in reaching a certain post quota inorder to get a couple of tokens, this is net negative to the forum as it does not improve the quality of discussions, it makes the forum unappealing to older members and puts lots of work on the mods.