They might have a top-secret business plan under which they grow to a certain critical size and then start earning money like crazy through a specific channel t

They might have a top-secret business plan under which they grow to a certain critical size and then start earning money like crazy through a specific channel that requires critical mass to become viable, in which case more power to them. However, if they don't have a secret revenue ace-in-the-hole and their business plan is merely to get really big and then, you know, like, start thinking about how to make some money somehow...I certainly wouldn't risk my money on that.