Sure. Does the same apply to single-sentence "This is great!" comments? Snide remarks can be valuable. If everyone you pitch says "your idea sucks!", then you

Sure. Does the same apply to single-sentence "This is great!" comments? Snide remarks can be valuable. If everyone you pitch says "your idea sucks!", then you know you're 'probably' not sitting on a billion dollar idea. That value (from snide remarks) starts to drop rapidly once you start to get a few positive responses. Why? Of course some people will hate your idea, that's fine. The key question is: can you gain enough users/customers to build a profitable company? A "This is great, I would totally use this!" comment is much more valuable than a "Yet another chat app, count me out." comment.