and today there are members who sell BTT accounts for months without having a single red tag from DT1 members.
Does it really matter whether account seller is tagged by DT1 or DT2 member?
I would conclude that the majority simply do not care and do not want to spend their time on such things.
Hunting account sellers is not like hunting alt accounts as all you can really do is wait for them to create account sale topic to tag them, and its not like there's load of these topics anyway.