There isn't any "standard" for user names, excepting only rejecting ones if they are "abusive or offensive," and someone complains about them.

I use my own name.

You don't.

I'd rather everyone use their own real name.  Even folks like Richard Rhyner do use their names.

I think it's just as bad, maybe worse, to use an actual family and given name, that is not theirs at all, as if they weren't really trying to be deceptive. "Lars" B. is such an example. A good "Nordic" name for a good "Nordic" poster.  (Like Francis "Shaeffer" Cox.)

I assume that "Cole Dermot," is such a name, though probably meant more to be humorous, than intentionally deceptive.

I think that some posters use a name that might be recognized by friends, but minimize the risk of stalker strangers harassing them.