I am no longer able to edit a forum topic title - is this a new “feature” or does the ability simply go away for older posts?
Editing the title of your own topics is linked to the edit post time limit, which defaults to 60 days.
Editing any topic title (and changing the category on any topic) is reserved for users who have gained the trust level “Regular”. As of this writing, only
two four users are “Regulars” (as far as I can tell).
Regulars need to visit … er … regularly (at least 50% of the time). If you haven’t been on the forum in a while chances are that you got downgraded to “Member” (happened to me a while back).