Many links use the old style of flightgear.org/forums/.
It appears that the redirect has now been removed - as I recall there was a post on the mailing list about an RSS feed breaking as well.
For example,
https://www.flightgear.org/forums/viewt ... 45#p181570
These links are now dead. Is it possible to restore the old redirect to avoid broken links (especially on the wiki)?