I see that as a common "honest" mistake, especially for folks who list lots of coins in differing categories. It's also a practice that can be (and is) abused, but honestly one can't really make ironclad accusations about it and it's probably just a source of extra angst in one's life to pursue it.
You're doing a service for the "honest mistakers," of course, since they're hurting themselves by miscategorizing their coins.
You're doing a service for the "honest mistakers," of course, since they're hurting themselves by miscategorizing their coins.





















