This. I used to do phone work. We were expected to use a consistent and not famous fake name if we were using one.

Doing tech support, we were not allowed to go outside of the scope of support - if someone calls the free help line and gets personalized help with HTML because Rose happens to be good at it, when they call in and get Mary who is not good at it, they're going to keep calling back until they get Rose. I easily see how someone calling sales and getting the founder could make themselves a nuisance.