You are not a 'developer' you are a plagiarist and a coward. Don't try to hide behind the 'but i'm a developer too look at my EXPERIENCE' garbage.
Attribution is REQUIRED for anything linked to or used. Your website(s) do the absolute bare minimum they can get away with because you know most indie devs will either not know or not care to file DMCA takedowns on every web portal that plagiarizes a hosted version of their game.
Web portals are trash and always have been malware-ridden stains on the internet. Gamers use Steam, GoG, itch, and other distribution stores to play games instead. If people want plagiarized spyware-encumbered "free" games, they realize that those have almost all moved to mobile (the new dumping ground unfortunately).
Speak for yourself and never presume to speak for other devs. Plagiarism is one of the biggest problems still infesting the internet.