About 8 years ago I left some of my leagues right after the season had ended, having no idea you had to time your exit just right! As a result a red flag was added to my name. After that I found out you have to wait a few weeks. I don't think it's fair that I still have a red flag after all these years since I don't leave leagues unless the season is actually over - as in not when the playoffs are over but a few weeks later.