she looks like a boy god dammit

There absolutely is a way to help curb or curtail it. It's called not operating on a completely open honor system where any new user can register and create any giveaway without any sort of restrictions whatsoever or without any verification that they understand what they are doing. The FAQ is all fine and good but many people either don't bother to peruse it or simply TLDR it.

On the giveaway creation screen: at bare minimum there should be short statements outlining the most common errors/misunderstandings that are made when making giveaways and check boxes or some kind of method to force people to read and acknowledge them as a prerequisite step before they are able to create said giveaway. For example:

• Do you understand that by creating a giveaway it means that you are giving a game, not receiving?

[ ]

• Do you understand that you must buy the copies of games to be given away yourself and that Steamgifts does not supply or provide them?

[ ]

• Do you understand that you cannot give away a game that has been already been activated in your library and that you must have an extra unused copy?

[ ]

• Do you understand that games with regional locks/restrictions are not permitted?

[ ]

• Do you understand that it is not permitted to give away a game/DLC and pass it off as another game/DLC??

[ ]

• Please acknowledge that you have read the site FAQ that outlines the rest of the guidelines.

[ ]

These are some of the most common pitfalls. And yes, it would mean a few more clicks when creating a giveaway but would be worth it. If it takes flashing lights and a loud horn in people's faces for them to pay attention to what they are doing then so be it.

I would even take it a step further than that and restrict any new accounts from creating giveaways for 30 days. Or at least not high value ones. This need not be the end-all, be-all, but a place to start from.