This was not about "abusive members" this was about a member having too many communities according to you. We both seem to have a very different definition of "abuse".
The user in question does have a lot of communities but he is very active and has different moderators who he manages. Also, when the moderators of these communities do well he transfers the community over to them. As recently as yesterday when he transferred !movies@lemmy.world and !marvelstudios@lemmy.world.
While he has a lot of communities he does a good job managing his communities and training moderators and is making our lives as admins easier. If someone has a lot of communities and doesn't do anything with them, that is squatting and we take action. I think we have a good track record of that.
So unless there is something we are missing I really would not call any of what the user in question did "abusive".
Lastly the best way to get someone to look at your problem is to use the report feature. The reason you got no reply in nine days is because there was no problem.