→ Your profile must be public
→ Your inventory must be public
→ I will not give you skins or cases for free
→ I will not trade back
→ Don't try to scam me (Instant Block & Report)
→ I won´t add you if you have VAC ban (Hate Cheaters!)

If I remove people from my Steam friendslist (and block them) without telling them a reason, it's most likely one of these reasons:

You tried to scam me.
You got a VAC Ban since friendship.
You send me unsolicited group invites. (Spam)
You send me links to gamble or other shady/♥♥♥♥♥♥ websites. (Spam)