name change gobbledygook

I got a private message this morning about my display name. I'm not sure why I'm being asked to change it. If someone would clarify I'm glad to help, but the statement "In particular, your display name must sound like a real name, and must not be obviously fictitious. Initials are OK for the first name but not the last" doesn't seem to apply here.  It doesn't have initials in it, both names are legitimate names, and it's a name I've been using for upwards of 25 years online. Is it the name of some kind of celebrity? Does it not sound authentic?

I do not see a reply option on your message, so I'm asking my question here.

Your name seems fine to me.  Not sure what happened.  We're looking into it.