..which pings an admin if an account checked with his service meets to many low post quality criteria https://bitcointalk.org/index.php?topic=1142314.0.
Why would you ping an admin?not for off topic, since that page gone stricter, people could not post useless posts anymore.
It has not. You're not looking closely enough. Even though a lot of the threads that were being spammed are locked, the situation hasn't resolved itself.why not just make a rule that these insubstantial posts should be considered as a spam for activity farming and just report it to a mod and immediately be deleted. In that way, the whole board will not be affected but only the shitposts on some threads. Just my opinion. 
What are you implying here? Automatic deletion? If not, then you're not suggesting anything new.Activity means "activity", and should include all posts if one is being a purist.
Posts of barely any to no value should not be counted towards activity. Do you want someone to end up a legendary poster after 1000 posts in the games section? Of course not.