Безопасен ли zweisam.de?

Rather fake, than real, cause I saw some of their girls on ***** and I chatted to them over there. I was so furious at first because they didn't know who I was ( after having chatted with me for months on Zweisam), but then I asked them to turn on their cam, and they had no problems with it. I saw them all and I knew they were real. So I don't have faith in Zweisam anymore. Bunch of their profiles are on the other sites so you can't really tell who you are chatting with and if they real or fake.