We did think about that, but our economic model is to focus on income for SaaS collaboration through TerminusHub. We are a distributed revision control database - so the model is a bit like git and github (only they piggy backed on an already successful open source project and we have to build both open source and hub!).

We really don't like the 'traditional' open source economic model - with a community version and all the good features in a proprietary enterprise edition. The community version is almost necessarily weak and you end up annoying your users. We'd prefer to keep as open as possible and have a commercial SaaS or open core model.