Forum handles are a bit like tattoos. One should consider long and hard about any permanently identifying mark before making their choice.
I agree that it would be nice to have the ability to choose a new handle, if you later feel that you chose badly when signing up.
Slicksadick;
Just send JimRob and the ADMIN MODERATOR a FREEPMAIL
asserting that you’re sick to death of your screen name and your chosen new one. Sign up with the new one.
Avoid using the old one. You can answer the FREEPMAILS until they die out—tell Jim and ADMIN MOD you want to do that
and the old stuff will still be accessible under your old screen name but you won’t use it any longer. Use the new one.
It won’t have your old sign-up date.
Many of us have lost earlier incarnation sign-up dates.