I think it is OK as long as one respects women. Hairfetishists should be proud of their being a fetishist.Indeed everyone knows ladies who like it when someone is praising their hair (or their beauty in general).And infact I do not like this word fetishist for such people.It sounds too pejorative.Let us keep it to long hair lovers.Or Lovers of longhaired women.Then I can say : welcome to the club of many millions of members.

Greetz