Before you disparagingly call it a "clone" and "not their main project", consider that free products often go on to crush their expensive first-to-market predec

Before you disparagingly call it a "clone" and "not their main project", consider that free products often go on to crush their expensive first-to-market predecessors. The strategy of first seeking to monopolize the user-base, and then afterward heavily monetizing it is a very well proven long term strategy by now. The overnight success of Slack and some other SAAS companies may give some people the impression that this strategy is suddenly irrelevant. It may not be.