foad01: GOG support answered that you can create and use multiple accounts for games and movies if you don't use them to break the GOG Code of Conduct.
Now there is something which needs to be addressed.
It is a problem.
For once I agree with you about multiple accounts .... surprise surprise.
But why don't you just leave it up to GOG, and not play the unofficial policeman of GOG?
It is not a good look and certainly doesn't make you popular, so where is the benefit, especially as it is almost impossible for you to change anything?
I've not read all your posts, so I don't know how you naming and shaming folk helps other members?
If you discover someone evading a ban by using another account, by all means report it. But other than that, you should leave it up to GOG to manage other aspects like key harvesting etc ... there's nothing you can do anyway, other than report any suspicions to GOG.
And when it comes to giveaways from other members, it is up to them to research those wanting a free game from them. I certainly wouldn't be giving away a game to folk who did not already have a good collection of paid for games in their account.