It's an extension I made that lets you dislike/like every page, and assuming you use Google Search (for now) shows the ratio in search.
Bdw if anyone has commentary on the name/icon I'd like to hear it, I'm not at all confident in my marketing/branding ability, if it is really bad I might change them both.
Well, I certainly didn't think of that connotation with the name, thanks for pointing that out. Maybe I'll change it to something literal like "RatioEverywhere".
I actually don't think there will be a big issue with bots - you need to sign in to rate, and I implemented an automatic check to see if an account is spamming ratings, which I think will be enough.