Of course, sex jokes mostly serve the purpose of making the post more entertaining, and so “generally informal but no sex jokes because they make people uncomfortable” is a pretty reasonable norm which doesn’t in any way inhibit clear thinking. Forbidding curse words can make certain concepts harder to convey, but I think probably the right norm there is “when in doubt leave them out”.
Of course, sex jokes mostly serve the purpose of making the post more entertaining, and so “generally informal but no sex jokes because they make people uncomfortable” is a pretty reasonable norm which doesn’t in any way inhibit clear thinking. Forbidding curse words can make certain concepts harder to convey, but I think probably the right norm there is “when in doubt leave them out”.