If you use google image search recently, it's mostly Pinterest and Facebook.

And google forum search, which is pretty great overall, is often full of facebook comments. I don't mind the reddit results, since they still usually (somehow) contain the best answers to my queries. It would be great if it could be further filtered for actual forums.

Not just recently. Google image search was semi-useless for years due to being spammed by login-walled pinterest images.

knowing how to game Google Image search years ago is exactly how Pintrest got it's footing. Shocked they haven't been totally blacklisted. Well not shocked because Google doesn't care about image search and actively makes it worse often.

Not if you use `-pinterest -facebook`.

...or stock images.