Bath edit plays / history
When I joined Trakt, I set a bunch of movies/shows I had watched to Release Date if I didn't know the date, but I realized later this messes with my stats more than I'd like. I'd love a bulk edit option (i.e. remove plays before X date) until the indeterminate date option is added.

No immediate plans to add this to the website. For now, the Trakt API can be used to batch edit. There are also some 3rd party tools out there which might help with this too, although those are mostly to help clean up duplicate plays.