The more I hear about this the more it looks like this entire scheme has turned into a pyramid scheme. Pouring more money into investments to try and boost the valuation. Using previous investments to invest and boost the value of new investments, guaranteeing massive loans in order to get others to invest at huge valuations. It just looks more and more like laundering money through all sorts of different mechanisms…
I want to point out that a lot of these valuations are signed off by well-known accounting firms, valuation firms, and consulting firms. If it's really one big conspiracy to prop up valuations via recent financing, loans, or market comparables, then wouldn't one of these parties call it out (well, inherently a lot of these are paid by organizations to do their valuations, so true independence is a question here). Add…
There isn’t a theoretical foundation for valuing lossmaking companies.
The best we can do is project forward to a cash-flow producing state, where there is good theory, and then discount that value to the present. The projection is essentially guesswork, making homework-checking by valuation consultants somewhat useless.
The only real check is other investors participating. That happened with some of Softbank’s investments, but not with others. (Adding fuel to the fire is Softbank’s habit of shutting down the secondary markets around companies it invests in.)