Username change?
 

I am assuming this is not able to be done. but, I am wondering if one is able to change their user name/handle on FT?

Please see: http://www.flyertalk.com/forum/faq.p..._change_handle

I know for sure mods are aware of people who are banned from FT, and are registered with new nick.

Nothing seems to be done (or can be done?)?

I would suggest contacting the moderator(s) of the appropriate forum whenever you have a concern regarding another member of FlyerTalk.

I personally have no problem. However I wanted to highlight the issue of creating new user names, when already banned vs the strict t&c with once in a lifetime exceptions.

Theory vs practice.

This is a known issue, and there have been posts in the past (none recently, iirc) about how to identify, track, re-ban, etc. repeat offenders. It's not always that easy to do. But when it is, and confirmed, the "new" handles are also banned.