There should be a way to tag people that take money to make a mod then don't make it or repay.
Recently I gave a modder $40 USD to make a Stagecoach for me. After being paid and some time passed I asked him on Discord if he was working on it. He just won't reply. Then a couple weeks back I saw in here he was asking how to change his name on this site.
So if he was tagged as abusive as his old name he could hide to do this to others under his new name. So if a tagging was implemented it should transfer to the new name, I think.
name and shame