I like this taxonomy: https://idownvotedbecau.se although I would suggest there needs to be an "AND" mechanism, because https://idownvotedbecau.se/nodebugging/ is 80% of what I see, followed by https://idownvotedbecau.se/noattempt/ and its https://idownvotedbecau.se/unclearquestion/ friend. https://idownvotedbecau.se/imageofcode/ is annoying, for sure, but I rarely downvote for it, so long as the actual text is legible.