The DT members needs to tag them (I do understand that they are busy, it's not really easy work for example this post, I still see no DT or them kind of account replied on this thread) one by one.
I tag them whenever I find any misuse but my redTrust means nothing since I am not a DT or someone trusted. Sad thing is giving red trust to these abusers also leaving my account with lots of red trusts.