Suggestions: 

#1 . Ban signature campaigns - this solves the spamming threads problem. 

#2. Force all new ICO's into a approval process run by the same bitcointalk members that now inspect and expose fake icos after they post. This will save the bitcointalk members plenty of time chasing down scam icos and hitting newbies with neg trust for promoting scam icos. 

#3 Charge icos a small fee for the approval process to be given to the bitcoin talk members that spend time doing the inspection.


#4. After these things are completed, become more welcoming to newbies that just want to learn more about bitcoin and crypto.