Feedback is just an indicator. If you're experienced with the site and with seeing prossies on it, you can use it as a guide, but a lot of it is fake.
If it's all for, say, webcam and none for escort then she probably doesn't escort.
The chances of encountering the situation you describe (getting beaten up) are very low.
If you are a newbie you'd be best off posting the links of the girls you are interested in on here and getting some feedback from those of us with more experience.