Emerald wrote:
put up a stickied post on that board telling people to post Inform questions on the Inform board (and TADS questions on the TADS board, etc.)
This is probably overkill... Anyone who comes to the forum finds sections called "General", "Playing", "Authoring"... and in the authoring section, there are very, very visible TADS and Inform boards. If people post in the wrong board, they'll probably still post in the wrong board if there is a sticky.
I don't see anything wrong with moving, though. In the AGS forums, which I visited very frequently, an overkill was rather necessary, and every board had a sticky saying what sort of things were meant for this board, and what sort of things weren't - and what sort of things would be better in THIS or THAT board. If a post was mis-cathegorized, it was simply moved - the original thread locked, with a courteous message saying that the topic had been moved, and linking to the new topic. Zero fuss.