Those threads have all been deleted or locked, and 2 domains have been wordfiltered. If there are more threads elsewhere, please use the "report to moderator" function on them. If more things should be wordfiltered, create a new Meta topic. (None of the topics you linked had ever received any reports, which is why the matter of DDoS services was never really considered.)
I thought you will take an action starting January 1, 2024 just like mixer, but I'm surprised you did it faster that I thought. However, I need to thank you by not give a ban on me 
My signature will be removed after I get a response from my campaign manager.
I don't think that it makes sense to ban a user because he/she has taken part in a campaign which was allowed initially. I think you didn't broke any rules nor did the campaign manager who promoted that site, but now that theymos knows about it and finds it unsuitable for the forum, you and the manager who's promoting that site should remove it as soon as possible. That's going to be helpful for the forum because such sites and services aren't any helpful as they can cause much trouble for the websites.
But against what I read from him, I advise anyone to make sure that they get their m!xing signature off before 01/01/2024, this is even before their manager tells them. Although most might still give the grace extension to the end of that day, it might be unwise to be entirely waiting for one's manager before doing so, some managers are slow so that it would not looks like an affront.
This is just what I would have done in their situation, it's just advice.