It was more of a response to the conversation than to the first post...

And to the first post, I forgot to mention...usually being booted at the very end isn't a demographics thing, but rather that you were going "too fast" (which doesn't mean fast at all, sometimes it can be quite long, but it's compared to what THEY think is too fast) or that you missed a tricky qualification question (like where they say to click the box all the way to the right) at some point and disqualified *then* but they just do it later on... That sort of end to the survey is usually b/c of one of those two things. And it just happens to happen after the end demographic questions.