Stupidest thing you've done on Steam?

I thought that buying and trading games from the Steam store during sales would net me a lot of profit. So I bought tons of RAGE which was on sale at 75% off, but in the end I traded for mostly games which I activated myself anyways. And I bought them at $5 each, when I could have bought them at 2 keys ($4) each if I got them from a Russian. Depleted about $45 of my Steam wallet earned through my Dota 2 tradings.

I'm guilty of always accepting "friend" requests and asking what these people want. And after that I'm just too lazy to delete them.

contact steam support for help

i sold 3x metro last light for earbuds, a key and some trash items. and this guy did this trick where you change the offer right before the trade would have been done, add a key and replace the buds with a similar looking item (icicle). of course i only looked at the key that was added and didn't see that in fact this douche had removed the buds. so i basically sold 3x metro ll for a key. won't fall for that again. and i keep the icicle in my inventory to remind me of my ultimate fail. ^^

I've won Tropico 4 with Official Guide on GameMiner. Missclicked and addet it to my lib instead of inventory. Ofc I already owned Tropico 4 so I burned a gift to get worthless guide I will never open ;p

opening a crate.

Buying Injustice for full price 3 minutes before it went on sale :(

Buying games that are on sale, while knowing I'm not going to play them.
Sigh...

Buying Septerra Core at full price right before it became bundled.

starting using steam, now i spend a lot more on games that i did before and i only buy at sales... steam is ruining my wallet :D

Activated Bad Rats after I won a giveaway.

Bought Bad Rats at release expecting a good game.

registered

Accepting most randoms who add me -_-

A couple of times I thought 'Oh, fuck it, I burned enough and I'll purchase this the next sale' - of course, games got removed from Steam (Neverwinter Nights 2, Anno 1404, Emergency 2013, Deadpool etc), developer packs got removed or are not discounted anymore as much they were two years ago and so on...

If I knew the Star Wars collection with discount -66% was a freaking price error and since then the collection won't be discounted even at the usual 50%, I wouldn't want to kick myself whenever I think about it now.

open a crate when i could sell the key

Bought CoD Ghosts

Try steam help? Maybe they can revoke it into your inventory? Worth a shot.

Forgot my password with over 1k$ of games on it.

Bought FEZ for the full price while it was in a HumbleBundle.

Bought Force Unleashed...

i buyed dead space 1 and 2 and i cant play stresfull games alone ._.

Accidentaly sold CS:GO weapon skin (worth around 4-5€ at the time) at the price of a weapon case (0,03€) because steam inventory did not refresh properly.