Why most startup founders become liars

There is huge pressure to lie. I am going to rant, and then, ask you: where do you find any semblance of truth and useful information from startup founders? If you pitch to investors, you probably sell a dream, even when you know there are faults to some of your logic and projections. When you are going after customers, there is a lot of pressure to convince them that you are going to be around for years to come. Anyone else who's read Crossing the Chasm understands that in time, we need conservative buyers - and they need to see that famous people love your thing, and that big famous companies already put their trust in you. And so, we're pressured to inflate, exaggerate and flat out lie. It's hard to find fault with those who do so - since the finish line looks so good. We could get out from under. We could stop being tempted to believe the bullshit that invades our favorite forums. We could find that if we stick with our thing long enough, work it for enough years of seven-day weeks, perhaps we, too, will have a success story. ***** It's all blue skies and clear vistas. Where do you find actionable information and without it being 95% bullshit, from startup founders?