Oh, that actually explains a lot. I don’t use Twitter, nor do most of the people I talk to about these things. Frankly, most of the stuff I see on Twitter sounds to me like it was composed by an insane person. If you used more of a “boots on the ground” approach and interviewed people who aren’t chronically online, your findings might ring more true with people like me. But maybe that’s not your goal? Nothing wrong with using Twitter as your basis, but I think the site as a whole will feel “off” to a lot of people unless you make it very clear that your data is Twitter-based.