I see that point. The thing is that this logic also applies to many items that were previously on TMDB and aren’t anymore, because many of them do actually exist in some form (and therefore have plays associated with them), they just don’t fulfill TMDB’s requirements to be listed.
Do we have our own guidelines for when an item should exist or not? TMDB’s ones can be found here New Content - New Content Bible — The Movie Database (TMDB) under “Not supported”, whereas I couldn’t find such clear rules for TVDB. It certainly would be good if we had such rules to make it clear what is listed on Trakt and what isn’t.
Adopting TMDB’s guidelines (if we were to fully agree with them) could also help with Items removed from TMDB.