PolybiusPro

This seems like it would follow along the same lines as emulators and torrent downloaders. If you don't download anything illegal with it, you're not doing anything wrong. I use this software for work to download good resolution/low filesize copies of my client's videos. Hopefully I can continue using it.

I'm actually already using this fork! I do enjoy the level of configuration yt-dlp has

Not necessarily obsolete. If the guy wants to do better, he should try to learn some of those AI tools. He's not being replaced by AI, he's being replaced by someone who uses AI to boost productivity

Regular maintenance is still necessary, as well as keeping up with modern design standards. And more productivity just means increased sales as long as there are clients present