I am not sure to which post you are replying to. It reads like a reply. But your grammar can be read differently.
Anyway, this is thread is mostly a warning. An advice to be careful. Not a discussion how to solve the situation.
Solving this on the cheap and without changing some core functionality of Itch will be kinda hard. The problem is, whatever is done, the criminals will adapt or change strategies. The most recent trend is fake comments with links to malware. You might have seen complaint threads about them.