Forum - Post removal doesn't reset the REAL "last updated" time

It seems when comments (largely spam) are removed from a thread, the thread still remains as a recently updated thread, when in reality, it's not if it's had the last record removed.

Would be great to see the date reset to the last comment date so that 2 year old (for example) threads don't appear in the latest updated threads.

This thread for example: https://laracasts.com/discuss/channels/general-discussion/good-video-service-for-an-education-saas

Last post was 2 years ago. A spam post was removed today, but it's listed in the forum index as 'last updated 8h ago'. Yes, it was, if you treat the last updated timestamp as a literal action (removal of the post) but it actually has no correlation with the thread content and shouldn't be listed as a recent thread.