That is the question...what is considered long for men in modern era has not been so for much of history. Long would have meant LONG like a woman (that generally doesn't cut her hair) has. It might also have to do with how a man wears his hair as well. A queue isn't all bad, but some men have downright gorgeous ponytails that women would be envious of, kwim?
Now I have to say, Ian...I need to see a picture, because you didn't have "longish" hair awhile back

(and if you are overly worried, we'll have to dig up some old pictures of the PB Bouncer before he shaved his head

and you can always ask

)