It looks like the mod descriptions, and possible the mod content I haven't downloaded them to check, got messed up at some point, but at the very least the initial upload of those five mods was of five variations on one idea. You have to go back to the first uploaded version of each one to see it, and scroll down to the content section of the description, to see the original intended version info, but it is there. As stated above, this is a bad way to present these variations but it may be the best way available in the current knossos. If they were actually five uploads of the exact same mod then deleting the duplicates would probably be appropriate, but in this case I don't think it is.