So I saw in another giveaway that they pasted a link to a hidden giveaway.
I don't really know how to do that but my best guess is to set the giveaway to invite only and ad a direct link:
https://www.steamgifts.com/giveaway/CdCy5/aviary-attorney
Forgot that the hidden giveaway is locked for level 2 and greater only, sorry.
Thanks and good luck everyone! <3