PR: https://github.com/mantisbt/mantisbt/pull/2200

Deleting all of a user's personal filters is absolutely fine.

I have some concerns about doing the same with global filters though. I believe those should be kept.

I was thinking about the same thing but I decided not to at the end.

1. Ideally users should be disabled in the regular case and not deleted.
2. If we keep the shared filters of the user, I’m not sure we will be able to manage the filter (eg delete it or update it).

I’m not sure we will be able to manage the filter (eg delete it or update it).

@vboctor having stored_query_create_shared_threshold access rights (default MANAGER) is enough for that.
Changing the owner is currently not possible.

having stored_query_create_shared_threshold access rights (default MANAGER) is enough for that.

Exactly.

I my opinion, it would be best not to delete shared filters. They can always be removed manually later on by an authorized user.

@vboctor what about adding an entry to schema.php / $g_upgrade to delete filters where the owner does no longer exist?