Mostly, the ones I see are from SEO scammers and domain parkers trying to pump the value of their domains to resell them, or straight up scamming others to download or even buy a re-packaged malware version of their open source software.

This is likely the reason why they do this and now vibecoding makes it easy for anyone to do this.

I believe doomemacs.com has nothing to do with the developers either. Just more SEO spam or something.