real.geizterfahr: Not "high rep" "scammers", but users who "cultivate" a good reputation (the actual thing, not the number) to have better chances in giveaways. I think that's not too big of a secret.
Tauto: And high reputation isn't used to grab a game? Oh,I think it is.
High reputation, yes, but not high "rep". The points below our avatars don't mean shit. Have a look at your special friend, tinyE. He started out with a negative rep, but lots of people liked him anyway. Then he went all his way up far beyond 1000 rep. Did people suddenly like him more? No. Soon he'll be in the negatives again. Do you think people will like him less then? Why should they?
People have their reputation here, irrespective of their rep number. And some people (not tinyE) foster their reputation for giveaways. Not a secret.