In the end, I have a small question about this part: We generally do not moderate posts this old for on-topicness -- shouldn't it be off-topicness instead of "on-topicness"?
However, thanks for updating us on this new feature implemented on the forum, but in regard to the statement given above, I think it would have been
We generally do not moderate posts this old for off-topicness (i.e a post found to be off topic), and not
We generally do not moderate posts this old for on-topicness (i.e a post found to be in line with the discussion and on point), because if a post is on-topic, I don't see any reason why someone will want to report it to moderators.
Secondly, I think the 6months time frame given for a post that can be reported is not a bad idea, at that will give moderators less load, and ability to act on every report very quickly.