The rules of the site are that "Filmed TV pilots unreleased within four years will be deleted". If they will eventually be deleted...why not just delete them now? And more so, why have an exception to the rule and say that they will be tolerated (presumably,kept indefinitely/not deleted even if reported)? It would be one thing if they're not a high priority issue, but it seems that's not the reason why they aren't deleted? So what's the reason?

https://www.themoviedb.org/bible/tv/59f73eb49251416e7100001f#59f7403f9251416e7100002b:

Filmed TV pilots unreleased within four years will be deleted.

https://www.themoviedb.org/bible/new_content/59f792cd9251413e93000004#5a6a6a919251416d74000001:

There are many older TV pilots that were not—and will most likely never be— released to the public in the database. The pilots will be deleted in time, as per our guidelines for unreleased TV content. We tolerate them for now, but please refrain from creating new entries for old, unreleased pilots.

Please report misplaced and unqualifying pilots using the report button. :)

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Pilots that were never picked up to series and were subsequently released to the general public should be added to the TV section with the TV Show Status set to "Pilot". This includes pilots that are leaked on the web, are released digitally, air on television in foreign countries and are released as a special feature on a DVD. Please blank out the first air date field for pilots leaked online. We like to track those pilots with the failed TV pilot keyword.

If that exception rule is outdated then perhaps someone should look into confirming if the movie entries listed here: https://www.themoviedb.org/keyword/68647-failed-tv-pilot/movie are all unreleased (and if so, delete those movie entries).