stg83: Short version refer to the following known scammers wiki list, though it hasn't been updated in quite a while.
www.gogwiki.com/wiki/Known_Scammers of the alt accounts is on there but the [url=https://www.gog.com/forum/general/the_actual_complete_edition_of_eu_iii_for_free/post10]other is not, so a good idea is to do a quick search of the username on the forum and in particular the following thread:
www.gog.com/forum/general/known_scammers_mach_two?search=swatkat The relevant information is there for you to process and then decide whether to give away your games to those accounts or not. If you want the long version then I can explain to you in more detail via chat but it seems you have set it to either "friends only" or "nobody". :)
I guess I would be labeled a complete dick if I were to ask how or why I'm supposed to just assume the info in those links is accurate? I mean there's no chance any of those are being "falsely accused?' It just seems to me that there is no way possible for anyone, even gog themselves, to know with certainty if an account is an "alt account."
I dunno, I do see your point, and I guess I need to rethink how I do my giveaways, but I'm most likely just going to continue with them same way. if someone wants a game so bad that they'll go to the trouble of creating 10 alt accounts, then maybe they deserve to win. I dunno though, I guess that would be unfair to those who didn't cheat. Ugh, now I'm wondering whether or not to do any more giveaways.
Oh, and my chat is set to nobody. I was getting spammed by people who I had gifted games to asking for more. (Note the word gifted, I'm not talking about my contest giveaways). I used to often read the forums, find a post somewhere (often in the giveaway thread) where people wanted certain games, and I would just gift it to them. That practice has stopped because like hedwards correctly pointed out above, that had consequences, and the consequences were me getting PM'd (or chatted) from people asking for more games. So I began to feel taken advantage of and stopped just gifting games and turned my chat to nobody.
I do apologize if having that setting offends anyone. It wasn't my intention.