(For example, at least two "different" techniques of mine currently listed in the LessWrong survey are exactly the same thing, just described differently!)

Which two methods are these?

In general I think your post is good but could benefit from more specific examples.

Edit: I see you left examples out in order to keep things short. That's certainly understandable. It'd be awesome if you had a follow-up post where you discussed the stuff you left out. I suggest a quiz format, e.g. instead of just giving us the two techniques on the Less Wrong survey that really describe the same thing, give us five techniques and challenge us to figure out which two describe the same thing, then give the answer in the next few paragraphs.