[sebastiennight]

You're describing an existing plugin called SponsorBlock.

IIRC it even has lots of options such as enabling you to allow/disallow self-sponsor segments (the creator promoting their own product), "like and subscribe" calls to action, shock-and-awe intros, podcast recaps, and several other segment types.

[typpilol]

YouTube has it built in now. We just need auto skip to be built in now

[SchemaLoad]

Only for YT Premium users. But since premium views pay creators more it's less of an impact.