I'm extremely picky in this regard. Even the wording of a message can throw me off. If it seems too blunt, or if there is no personality coming through in the writing, I immediately become a bit distant and am less likely to book. I will usually continue politely, but not for long, then just not book. This has only happened a few times so far but it's bound to happen more often I'm sure, and I understand, the girls put up with time wasters all day every day, guys who want to talk and try to get jack off material, I get it. But I'm not that guy, and even though I'm intelligent enough to appreciate that the girls have no way of knowing I'm not that guy, it doesn't negate nor prevent my emotional reaction, which I then have to overcome if I want to book. Just one more hurdle that I don't have to deal with if I don't want to. I'm not saying I get upset or am sensitive, I just begin to wonder if that attitude will carry into the session, for how long, will I have to be a regular to make it disappear, how often must I visit, and so on. I respond rather negatively to bad attitudes and will just walk on the appointment then vent here most likely, not a good experience and one I wish to avoid so at the first sign of this being a possibility, I just cross her off the list and end all communication attempts.
On the contrary, a girl who responds positively, thoroughly (missing clearly stated points is a big pet peeve of mine), and with some personality in her message, is much more likely to keep my interest, intensify it, and see me at her door in the near future. Girls I wouldn't usually gravitate to for whatever reason, can and have caught my interest simply because of who they are, in this hobby and in real life. So it's a rather significant component in my decision process. I will say though, check what you write to her. I'm a bit verbose and decently articulate so I probably conjure a specific image in a girls head, simply because of the way I write, that is favourable. If the message you send resembles those sent by time wasters or bad clients, perhaps they will not want to respond. I also know a lot of girls ask for specific information in your introductory email, and if absent, you will not receive a response. Check what you wrote, and see if it's missing any key elements. If you still don't see anything wrong with what you're writing, PM me your msg to a specific girl if you're comfortable and I'll tell you what I would change. Might help, might not, but if you're not getting anywhere anyway, it can't hurt.
Best,
T