I understand what you mean, most legalese can seem quite imposing out of context. The nut of the problem for me is that it's obvious you're intending a profit making venture (tos, etc.) but you aren't telegraphing where the money comes from. With heroku, etc. it's clear what their intent would be (paid hosting) even when embryonic or unstated. As many IDE's are free without service terms if your intent is to sell SaaS, perhaps a "beta testers get free (blip) when we launch" - or whatever. That at least would keep me from worrying on the monster behind the curtain.