idbeholdME: As for the stealing topic, I also used to encounter something similar when talking on Steam game subforums. There is a little icon showing whether or not you own the game on Steam. Some people like calling you out for not having played the game (because Steam is the only place where you can get games in their mind). Luckily, that seems to be disappearing. Haven't had that happen in a while now.
I think we can thank the competition of Epic and their endless giveaways for the heightened awareness that there is indeed a PC gaming world outside Steam...
It's not only on Steam directly (I don't have a Steam account anyway) where accusations of piracy happened, but also on other forums or social media (fb, reddit). But it hasn't happened in a long while now at least to me.
(Best time was when someone absolutely wouldn't believe me that Half-Life has once been available on disk... and Steam didn't even exist back then...).