I might want to reply to an old thread, just because I would like to have a voice.
But then, that irrelevant thread could be bumped against the will of other forum members.
What I suggest is: Ability to post to an ancient thread without bumping it.
Uhm… so you want to post without anyone ever seeing it?
Maybe type in a reply in a document on your computer and then delete it before someone notices?
Still visible in my posts.
But how else can somebody contribute to old threads without being considered as annoying?
Well, I do actually not consider it annoying myself, but others might do so.