So, I saw one of those scam mods last night (In my time zone) and it seems they just play around the changes in a few ways.
For the Posts tab, they still work around it by preventing posting as a whole. There was the "No Posts can be made" message when on the tab. So while the Posts section is available, nothing can be posted, thus preventing flooding of "This is a fake mod!" warnings.
For the Bugs tab, they seem to be sticking around enough to delete, or otherwise hide any posts detailing how the scam mod is fake. If not sticking around, they most likely have a bot system to see if there's any posts and set them to delete/hide any warning posts.
Going on the above, I wager even if Posts were forcibly enabled in a similar way to Bugs, I wager the scammers would simply set up another bot to monitor posts and attempting to delete/hide warnings.
So there are still a few tiny flaws, but I'm not sure how they can be addressed without potentially messing with Nexus' systems more.
