I think the forum should do something about it other than tagging user account with negative remark
This forum is business oriented. It won't do anything overly aggressive towards altcoins, because it's a very important traffic generator. At the of the day, scams aren't moderated, so they do enjoy a certain extent of freedom.
The main factor is that we shouldn't really put the focus on altcoins, but just focus on that what actually contributes to growth and development. Altcoins will even be what they are without this forum.
At some point the far majority of the altcoins will no longer be able to operate with how exchanges are becoming stricter, and that directly goes up for regulations as well. There will be a time where only a dozen of coins are left.
You can't expect from such a new industry to be perfect right away. It's all about supply and demand. Is there demand for these scam coins? Yes, so they will keep popping up until that demand is no longer there.