DaCostaBR: If it's truly that difficult for it to be implemented, a gate on a single subforum, I withdraw my suggestion.
I don't intend to prevent people from going into individual game subforums, or the Support subforum I suggested, and asking for help to solve their problems. Be it for the free games that come with the account, or how to use the site.
In that case though something else must be thought of, otherwise banning people becomes what I said, merely a self-congratulatory song and dance that doesn't solve anything.
Unfortunate yes, trying to think of an easy example:
Let's imagine on your own PC running windows:
You have only ONE user registered the admin.
Now you add users with restricted access. They shall now be able to run the prior installed games.
Will not work, you need to manually alter all directories and registry to make them accessible to the new users.
It is only a rough equivalent but you might get the idea ;)
Plus when GOG reads it MAYBE they will have an idea as they know their system better ;)