Hi

I don't recall any specific threads that we've deleted. But if it contained more negative replies than positive, and didnt look like it was going to get any better, or if we received a lot of complaints about it, then it could have been removed.
However, I recently pruned back the forum of any posts older than a few weeks, so that is likely what happened to your post. We have to prune every now and then to keep the forum at a managable size. This script is known to go belly up when it hits a certain point