I was so glad when Valve finally let you set your Steam Inventory to private (or friends only), as for a while I got a random friend invite or message from a stranger wanting me to give them my TF2 hats.
The best part of that was how many of them wanted me to just give them my hats rather than trade anything for it, given my somewhat low playing stats I guess they assumed I was dumb enough not to realize the trading value of one hat in particular (which I actually do wear when I randomly play TF2, so hah). So many "Hey, I see you haven't played TF2 in a while. I like your hats, would you give them to me as I play TF2 a lot and want to look cool" messages...
Again, glad that my Steam Inventory is now private and I don't see that any more.
Hell, my problem is just people spec'ing me in game and asking me to either make a lopsided trade or, as you mentioned, just go give it to them. I think I got at least a dozen friend requests from strangers the day I unboxed my M9 on a maxed out casual server.
The best part of that was how many of them wanted me to just give them my hats rather than trade anything for it, given my somewhat low playing stats I guess they assumed I was dumb enough not to realize the trading value of one hat in particular (which I actually do wear when I randomly play TF2, so hah). So many "Hey, I see you haven't played TF2 in a while. I like your hats, would you give them to me as I play TF2 a lot and want to look cool" messages...
Again, glad that my Steam Inventory is now private and I don't see that any more.