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Flooding is difficult to moderate if it isn't off-topic. At least the first point can be removed.
Leave the off-topic rule. It might be possible to express the point about percentages differently, but keep it.
Leave the topic rule. Sometimes, people don't understand it right away, so it's good to have a reference to the rules in case of violations.
Flaming and trolling. I'm not sure about this one; it's debatable. Of course, these points aren't entirely objective, but it's also bad without them, as all sorts of people show up.
4.9 Definitely keep.
4.15 In general, the previous point covers it, so it can be removed.
4.22 Keep it, of course. It could be clarified that it's possible in the appropriate section (dialogs with moderators). If it's actually possible.
4.23 and 4.24 – I would lower the points for these, although it's up to the Creator: he probably had a reason for doing it this way.
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You've put the discussion into two topics. Move it if something is wrong.