OK, I tried some times to raise a bit the tone of the conversation and sometimes it worked, some other times less so.
I only once was very explicit as far as I can remember, but I was really young, the first times in chat and she was a continent away. I think it would have definitely worked if we had lived close.
My opinion is that it can work with the right girl; if you already know her (but then again, you might not need sexting to bed her in that case); if she's some kind of a horny cougar with experience and no time to waste etc.
The advantages are that you can meet and be almost sure to have some good sex without much to worry about.
The disadvantages are that a lot of times it can misfire and you end up ruining many possible personal, flesh and blood interactions that might have led to bed anyway...