One of the things you can do in your profile is customize a signature, and have it appear in each of your posts automatically. This is where most users put information such as that you wish to put out there (eg, licenced qualifications etc) Also if you're making a living in a marine related way you must disclose that too - in a non-advertising manner.
Have a look at that and see if that would satisfy your requirements.
The only other option would be for us to ban the current account, and have you register anew, but that would mean that any old posts of yours would forever be tagged with the 'banned' notation - a stigma that you might want to avoid.
1984 Fast/Nicholson 345 "FastForward"
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)