What’s to keep people from making multiple accounts and “borrowing” then selling at the nearest pawn shop or just keeping the items?

Very nice, clean build without standing out too much for people with sticky fingers

I really like my ymdk and now have one for home and another for work. I think they are a solid choice

There are specialty pcb clamps that could be useful to you for holding the keys in a constant angle/position for the labeling. Pcb clamps