They are building a per-user recurring revenue stream along with very strong lock-in features (embedded communications, limited/paid extensions). They won't nee

They are building a per-user recurring revenue stream along with very strong lock-in features (embedded communications, limited/paid extensions). They won't need lot of traction if they're able to boil the early adopter and enterprise frogs. Great business model but the editor is designed around it first and foremost.