Very controversial questions I have to say... you've got a lot of messages from: "Cool!!!" to "Fagg*t!!"

You have to choose your own way.

My contribution:
Earring in men is accepted by almost everybody in case you are a sailor and you have crossed one/or both of the major capes.

Cape of Hornos: one earring.
Cape of Buenaesperanza: one earring.

So you can have two, you choose one in each ear or both in same. But remember to do the very advanced sailing training before try... :)