Dear bot users, Why are warnfiles older than four weeks still present? They are useless and can revert the work done by people, e.g. in cleaning up links to incorrect korean years. My suggestion is to use warnfiles no longer than two (maybe four) weeks, after which the person who placed the warnfiles takes care of the deletion. Another suggestion is to use the interwiki.py bot rather than the warnfile.py bot, to prevent conflicts with later edits. Since the growth of interwiki numbers is a square function of the growth in number of languages on a given article, making interwikis will become more challenging as Wikipedia grows. Let's try to do things in a professional way. Regards, Quistnix (Anton)