[GA inside] How am I able to check a private profile?

this

i dont think they can, unsure what these people meant. would like to know as well.

I don't know how they do it but they do it. I have send a number of those kind of request new winner tickets and either they got denied and SG support says that the winner his/her Steam account is in order and I may send the game or I do get a re-roll.

Afaik SG support checks those private Steam profiles on already owned, all activated and no multiple wins.

SG support does have some "power"tools as I even heard that they can read deleted forum messages. :-)

if someone wins my ga, it's the least I expect from that person

Yes, it works well.

sure. i already did that a few times. you add the person, he makes the profile public to friends (doesn't have to be completely public), you check and then he can make it private again. no big deal, really.

Yes - absolutely. I have a private profile, but have never refused anyone who has asked me to temporarily set it to public.

if he blocked you and you have a screenshot of that you can ask for a reroll on the grounds of "refused to accept gift".
or ask support to check if he has a clean profile

nice!