I didn't say always. Just mostly.
And I believe they (and Odo) always referred to her as Nerys.
Nope, not always.
Anyway, I'm not actually arguing that Leeta should be her family name. I was only pointing out that it was not unusual for people to do that to Bajorans. Heck, did Ro ever
called Laren? If she did, it wasn't often.