It's hit and miss. Nothing wrong with asking for a service that may not be listed. I've seen plenty of profiles that miss out lots of "enjoys" and then find the young lady does absolutely everything....if you just ask.
As for studs not wanting to faff around with emails and only make calls or texts. That's ok if it's just simple fucking your after.
But some of us are more articulate and a nicely worded email works best in a lot of cases. Sometimes not but it's part of the game we play.
My own particular peeve is reading derogatory posts from punters who think they know it all.
But then again.....I'm perfect.