I completely disagree: they should all remain. If they draw in the curious, then all the better. Some will stay, read, study, and learn better.
My only concerns with the spells section is that some are mislabeled, the suggested supposedly related spells which are listed in the sidebar are not labeled, and the spells' pages themselves do not show their own categories. If that were improved, the largest concerns I have for that section would be mitigated. As it stands, someone could find a long-practiced circle-casting ritual, then notice a pony summoning spell listed on thw side. They may well believe that, since it is linked with a legitimate (seeming) spell, that it must also be true.