If I really want to add someone, I'll do it through the Steam client I already have open.
Oh, that user's profile doesn't exist on Steam? Shock and amazement!
Anyway, ever since I unboxed an unusual taunt (which have been in the game for at most a month, I unboxed it within 5 days of the update), I have a lot of people trying to add me. I simply ignore anyone that tries to add me, unless one of these apply:
- I recognize their name (GsiX got added due to that) and I can confirm who they are*.
- They're already friends with a bunch of people I know. Chances are this goes along with #1.
- They're a member of one of my groups. Except any "official" groups or the PropHunt group (which has like 50k members).
*This restriction happened because someone was pretending to be someone I know who works at Valve. Luckily, I wasn't stupid enough to follow the link they sent.