[Suggestion] Message/Chat System

Pros:
1- People could make a trade deal via it, so it could be easier to staff find impersonators, thieves or whatever and ban them. Also the thieves could make a fake steam chat screenshot and say he didn't do anything.
2- People could remember one giveaway winner to mark it as received or redeem the game if the giveaway creator doesn't have anyway to comunicate with him. (Like private profile and if he is a level 0 and didn't make any giveaway to comment in) (I don't make level 0 giveaways but i care for other people :P)

Cons:
1- Spam and others annoying messages, but i don't think that could be a big problem cause there's spam everywhere and staff could simply ban/suspend all the spammers. (Also, spam here is against the rules)

Please, don't blacklist me, i'm a nice guy ;-;

Edit: Giveaway [OVER]