way back at the dawn of time, to avoid issues with hitting maximum values for various MySQL types, we made it so comments and posts are numbered per-journal, not sitewide! nobody could *ever* receive more than 16,777,215 comments to their journal, right?
25 years later: lol. lmao.
I know it is nothing in comparison now, but I am reminded of how CrystalWank broke JournalFen and issued in the maximum number of comments any one post could receive.