I'm not arguing, just discussing, and it's not semantics IMO.
E.g. Band A has 100,000 fans and 1 in every 1000 is a fanboy. So we have 100 fanboys. Band B has 1000 fans and 80 in every 1000 is a fanboy. So we have 80 fans. This is relevant because it might seem like Opeth is particularly fanboy...