Remove empty topics from unread list.

[Chris Kawa]

Recently there's been a flood of spam on the forum. The topics are removed quickly (automatically or someone does that by hand?), which is great, but the headers are still visible on the Unread list, so I've got a wall of spam topics that I need to manually mark as read.
Could empty topics (with deleted content) be filtered out of the Unread list automatically?

[koahnig]

This is certainly a request supported by all regular users of the forum.

AFAIK this requires at least an update to the next version.

[tekojo]

Deleting topics seems to be limited to admin level.
Next version has finer grain control on user rights.

Will get fixed.