mdh has contracts with some producers who shoot content for them and make new profiles on a regular base. That is why many eastern european models have a german flag in their profile.
i know a guy who has over 30 female profiles there. than a few ones who run a couple of female profiles. i have only 2 profiles and they are inactive at the moment.
and honestly it is naive to thinks that the girls run there own profiles there. these girls are simly too dumb to do this. most of them are only capable to switch on their webcam and open their legs. but also only when a guy first installed that webcam and software of course.
from your list for example only the few german models are real behind their profiles. all the others are men or productions. gina gerson for example was lreto68, but he stopped to shoot completely. diether-v-stein runs a lot of the others as he simply fucks a model and put that stuff online there in a female profile.
i would say 90% of the profiles there are faked or girls with a partner but who dont run a couple profile as it sells worse.
funny is they promote it as if they would check every profile and the guys still believe everything and pay aa lot of money for those expensive shitty clips.
i heard the girl from fickenbitte once shot for her-sweet-hand, so she should be listed there. the whole profile is run by diether-v-stein or some of his colleagues.