Yo! I can say that most of our users are open source users. We are community-driven, and like 95% of the features are open source. It’s true that we need something to monetize on but I really feel that we are an open source company.
Kudos. I appreciate the desire to be open source and the need to monetize (and I don't have a golden solution to it, so I would probably do something similar), but I just wish that people clearly define that they are open core because there are a lot of amazing open source projects out there, and it wouldn't be fair to them to be called open source when they aren't.