The recurring excuse for the investment is "look at the engagement". Toilets have incredible engagement as well - billions of people use them multiple times per day - but we don't put millions of investment dollars into them. Well, maybe the people investing in Yo do, but most people don't.
Yes, and if you showed me impressive engagement and virality metrics for a toilet that had network effects and a plausible recurring revenue stream (ads), then I would definitely invest (of course no such toilet product exists - toilets don't have strong network effects and don't have a plausible recurring revenue stream in the form of ads).
