GioVio123: A litlle question here, was ever a distinction here for humble bundle links or such to get the steam keys? (I should really work on my sentence estructuring, I meant if any steam keys were ever pointed out to be sended via humble bundle links) Or is it not necessary to make a distinction?
I don't see a reason to. If I ever get a Humble link, I usually just redeem it myself and yank the code from it. The only exception is in the rare case that there's a DRM-free version of the game on the link as well, which usually doesn't happen because redeeming the DRM-free version is often the reason the person is giving away the Steam key in the first place.
bler144: generally speaking I think the organizational model is the platform the game is claimed/played on, not where it came from, particularly with Steam since those can come from a number of other 3rd party sales sites.
Correct.
GioVio123: Thank you for answering, so that could explain then the strange requirements for Steam, you aren't even allowed to be connected to user unless you payed for a title (third party distributors of those keys, don't count, which would explain why I can connect with other users and even be in steam groups, but my friend can't send me her friend request) but unless it was a gift directly bought form there you never met the requirements to even add user to a friend list.
Steam has an anti-spam thing whereby you have to buy at least one game (I think it was $5 worth? I don't remember) before you can do certain functions related to the community. The idea is to prevent abuse of the system such as phishing.
If I remember correctly, I think if somebody directly gifts you a paid game, it'll also fix this.