I think part of the reason I don’t care that much about Steam achievements is that they don’t do anything, plus the fact that they can be scammed via 3rd party tools.

I’ve only used said tool once to grant myself the “Paragon level 200” achievement and “Explore Nahantu” achievement in Diablo IV because I earned those on BNet and the unlocks aren’t retroactive.

While I might limit myself from “unlocking” achievements I haven’t earned, there’s nothing stopping someone else from “platting” a game they have played for 20 minutes, other than a lack of profile feed posts for these cheated achievements. As much as I would like Valve to make achievements matter, they can’t be allowed to matter while that tool exists.