already suggested and rejected https://wiki.sponsor.ajay.app/w/FAQ/New_categories#AI-generated_video
make sense for me

Rejection doesn't make any sense. Sponsorblock was created to save the user's time by not wasting it on garbage sponsors and scams and other pointless bs that gets added to videos. AI slop is the absolute worst type of timewaster on YouTube. I think the interest to block this garbage is there so I'm hopeful for a new extension to block this garbage as youtube is pretty much unusable nowadays because every search returns too many ai slop vids even after filtering out shorts and other crap. AI is just a cancer nowadays, we need to filter it out.

This is worth donating for, I really hope it gets implemented.

Sad to see this was rejected*. I concur this seems well-aligned with the underlying purpose of Sponsorblock.
When an entire video or channel is AI slop (generally, I think it's rather safe to assume that any channel that posts AI slop videos posts nothing of value)
*Actually it wasn't! Wiki currently states:
Reason: This won't be added in SponsorBlock, but I an upcoming extension is in the works
I'm OK with this. It'll have different functionality if it uses the generalization I provide above to decide what to skip by default!

For now, I leave comments like this:
Click on the three dots next to a WWII Rising Stories video, and choose "Don't recommend channel" and you won't see more AI SLOP from this particular channel. Extension could also look in the video description for disclaimers (or even in the comments for indications).

Personally, I want to filter out all channels that post AI slop, in their entirety.

Fortunately, I use YouTube while logged in and use the "Don't recommend channel" trick so I don't see that much of the stuff... for now.
But it's sad to see AI SLOP and see in the comments that not one commenter seems to have realized they were tricked by AI SLOP. e.g. video v=kSyQnG-z6Io.

Makes sense for it to be a seperate extension. The crowd-sourced 'detection' like SponsorBlock is a great foundation, but it would require some different features to prevent abuse, categorize the severity (full video vs voiceover because the creator isn't a native speaker) and perhaps an 'algorithm' to give it a likely-to-be-ai rating based on submissions and data from other videos on that channel.

Just as an update, this suggestion is not rejected. I'm working on an extension for it that will work on all websites, not just YouTube.

I have pushed the source code of my prototype and am open to help or feedback if anyone wants to help. Not a usable extension, no submission system or anything exists, still just a prototype

https://discord.gg/SponsorBlock

https://github.com/ajayyy/slop-extension

I am in support of this feature being built into SponserBlock itself. Its getting to a point now where it's starting to feel like I need 6 different extensions to use Youtube. Adblock, Sponserblock, Return dislikes, YT enhancer, Dearrow, and now soon to be SlopBlock. The continuing fracturing of these features which very well could just be 1 addon means that you have subgroups of people with a few but not all of the addons which is kind off deadly to community sourced tools that require a critical mass to be useful. I honestly feel like this is already an issue for addons like Dearrow which if presented, (i think) a majority of Sponserblock users would use. But since Dearrow has not been able to hit that critical mass, it's been largely ineffective at one of its major goals. This continued fracturing is just detrimental to any "community sourced information" project.

I would also have questions on how having these many addons operating on the same page would affect browser performance (especially since YT has been throttling performance on browsers that are using AdBlock). I do not have much to say regarding this because I lack any benchmarks.

SponsorBlock blocks sponsors and it does that well, along with skipping other unrelated parts of videos which is a logical extension of the idea. I would personally love this feature but different people want different things, and shouldn't be forced to use a bloated tool if they only want specific parts of it. ReVanced is forced to be bloated because and it's a massive pain to setup because of it. Needing multiple extensions is Youtube's fault for missing so many features.

I don't think a majority of SponsorBlock users would use DeArrow if it was presented to them because it's such a rare use case. How many Youtubers make annoying thumbnails/titles and have content worth watching. A clickbait thumbnail/title just signals that a video is not for me.

I'd prefer it build into Sponsorblock rather than a second extension since you have the audience on sponsorblock already