no, it is easy to change. It's in the FAQ under Member Account. You need to click on Member Account to see this because only the most popular FAQ items are displayed on the main FAQ page.
Member Name Change?
I've looked through FAQ but can't find an answer to this question. Are our member names forever unchangeable? If the one we choose no longer resonates, or perhaps a spelling mistake was made when choosing a name, is it irreversible?
FAQ entry.
just create new account/..
Site Rules. "Members may only have ONE Chess.com account. Members who create more than one account may have all accounts closed."
You can get there with the Terms of Service link at the end of each page.
done
I've looked through FAQ but can't find an answer to this question. Are our member names forever unchangeable? If the one we choose no longer resonates, or perhaps a spelling mistake was made when choosing a name, is it irreversible?