That's a very interesting subject.  I'm a native speaker (inner circle), so can't help with the questionnaire.  I was curious about the questions, and I just managed to get the link to work.  I'll take a look at the questions.  It looks like you are confining the survey to people with linguistic training.  Is that right?

It just struck me that the questions would probably need to be slightly different for someone who wasn't trained in linguistics.  For example, an untrained person might find it more difficult to distinguish between "proper English" and "correct English", and some might have a little trouble with more technical labels like "syntax".  More importantly, though, is that linguists are trained not to be judgmental about language, so your results would be skewed in that sense.  I did not look at all of the questions, but it would be interesting to track whether the person answering the questions had taken at least an introductory course in linguistics.  I'm just curious as to how linguists' attitudes differ (or agree with) the judgments of the language community at large.