Was starting to get worried you might of decided to drop it after the topic purged a second time. Maybe move it to a dead forum with no topics. There's plenty of those and forum topics stay open for months before closing.
Moving it to another board sounds like a good idea, the only issue I'd have with this is that it's unlikely to have any new readers (tho, that doesn't happen often in the first place, but I like to take my chances)