If you can sell to one of their lines, that's great, but at present RWA, MWA, and SFWA no longer recognize the a sale to HQ to be a "pro" sale.
To a romance writer, the RWA thing is the most important. They do look out for your rights as a writer--which means standing up to publishers who are looking to screw you over.
It's all about money, and vanity press books make money--but only for the vanity press.
Just a few weeks ago a sale to HQ meant you could join those organizations and others. You were a pro writer and could be nominated for awards, sit at the cool tables at parties, and all the other neat things that come with pro publication.
That's changed, and it is squarely HQ's fault for getting into the sack with a vanity press, and stating they will recommend that vanity press to rejected writers.
It's not enough for some striving writer to get battered by a rejection, now they're going to send them over to that dark alley for a thorough mugging.