Some use real first name. Others use a fake name. Dos not really matter, whatever they feel need to use is ok by me. Some that do use a fake name, after learning real name I have found I like the stage name better for some.
If with a provider that you have a long relation with. And having a disagreement
with, you know you are going to lose anyway. Just like with a SO. You want to lose fast and get it over with,
to get on with better things. Call her by Ms. current last name or maiden name. After she kicks your butt,
you can get back to the fun.
(hope all see as a joke)(but it dos work)
not
If a provider is not using real first name. Use the name she is going by. That way you never slip up and spill the beans.
A few I know have in the past used different name so they would know how you found them.(eccie, CL, BP, e.com,etc) But have stopped doing that. The reason 1. it gets to be a pain. 2. dos not want to look like a few that have to use many names.