Only if you were actually going to be influenced to buy the thing in the first place. And it's not like the various bits of advertising from a sponsorship go en

Only if you were actually going to be influenced to buy the thing in the first place. And it's not like the various bits of advertising from a sponsorship go entirely unnoticed in many circumstances, with various requirements to add text ads to video descriptions and pinned comments. If you're looking to be actually informed - rather than manipulated - you're not missing out on much with SponsorBlock. Not to mention I've never actually seen anything both potentially useful and novel-to-me show up in a YouTube sponsorship anyway. It mostly seems to be full of companies with established models looking for ways to boost their adspend even higher after they've tapped out other avenues.