I think they've been very hands-off with the giveaways for
way longer than few weeks.
And I'd say no automatic ban for three negative feedbacks is a good thing anyway, because even if you do your best and try to reach out to people, it's not always possible. For example, I just recently got my negatives to -3 from -4 and those three consist of an obvious bot, a person who blocked me, when I tried to get them a replacement key and a person who, after getting a working replacement, said they would write to support and either didn't or their email got lost and ignored somewhere. None of those are really my fault and getting into trouble over that would've been annoying.
And that's not even getting into the issue of people giving negative feedback for proper working keys. I didn't get any obviously fake negatives so far, but I think
@cheerie132 mentioned someone winning a DLC from her and giving a negative feedback because they couldn't activate it without the base game.
The giveaway system desperately needs proper moderation and actual rules that explicitly state what's allowed and forbidden or at the very least unlimited blacklist capacity so honest users could at least have a small chance of getting rid of bad actors. Currently even blacklisting just the scammers reported in this topic is impossible.