I dunno, I have issues with things which are phrased as requests for help, but are in fact really appear to be just attention-seeking measures for your startup. If you ask for help, you should really, genuinely, want help, not attention, otherwise the "altruism" subsystems of my brain get all confused.

Now, if you phrased it as "hey, here's a competition, win $75 by writing good text for my ad" then that would be much more reasonable... but of course then it wouldn't be getting upvoted, would it?