I've seen a Linus Tech Tips video where the seekbar was very colorful due to SponsorBlock, someone added all the sponsors, product placement and tangents into it.
I admit I've marked segments on videos, e.g. skipping cringy jokes when I find the presenter annoying.
To clarify, are you saying that these segments were marked incorrectly?
If so, then it is a plain case of internet vandalism. I would just ignore such segments.
But if the segments were marked correctly and there were too many of them in the video, that is the problem caused by the video creator, not by the community which publishes the segments.
They were marked correctly, but I had a feeling someone was sufficiently annoyed with all the fluff in the video, that they went to the trouble. I think it was the only time I saw an LTT video with that many SB segments.
Really? I've been using sponsorblock for years and I don't feel like I've ever seen any of that. It's pretty rare for me to go back and watch something that was skipped, and when I do, I generally feel that skipping it was the right call.
Youtube has recently added a premium feature where if you skip ahead 5s, it will prompt you to skip an entire "commonly skipped" section. It seems like they've picked up on sponsorblock and are making it a feature for Premium users.
I don't think I've ever had it work on my pixel. I tap ahead through all ad reads I've already decided not to buy, and it's much more reliable to just skip ahead 30s/90s/etc than hope the prompt appears. I've seen the prompt maybe 5 times.
it provides the view count, for which the creator reaps rewards from as part of the boost in the algorithm from youtube.
Not to mention that a lot of creators on youtube also do sponsored segments.