Perhaps a solution to the "what class" threads?

some of your questions are based on your assumption of your audience. For example the "Have you been scammed, then scammed again?" This type of question implies that the surveyor has in fact been scammed. Thus it isn't a particularly good question to ask. If you get rid of questions that imply the survey taker has said action, your survey would be a lot better.

Another example are the patch extension questions. They all assume a negative stance toward nexon which may or may not affect the results of your survey. Clean up these types of things, and you'll have a decent survey, but i'm sure one of the spoiler maze ones would be just as efficient t deciding this type of stuff.