Love how some people generalize and always assume escorts lie about absolutely everything.
Some people lie a lot, some people try to tell the truth most of the time. Some will earn loads, some won't earn that much. Some will see 10 a day, some will see 1 a day. I would think this is pretty obvious.
Anyway, regarding tipping, it's happened on very few occasions and yes, it's great and I appreciate it. I don't think, "Oh what a mug", I just think, "Wow, that's really kind."
Honestly though, it doesn't encourage me to put in more effort, and that shouldn't be why they should be tipping anyway. If they're going to do it, they should just do it just because they feel like it, not because they have an agenda. In any case, of course I don't expect a tip, it's totally unnecessary, but of course it's appreciated.
I had a booking recently and I gave the guy a tenner off. I've seen him a few times over the last year and a half, and in that moment I just thought to do it, just to be nice. I didn't do it to encourage another booking, because I already know he's going to see me again at some point, I just felt like it.