Yesterday's edit on this post.
When the post was made, the mods at the time felt it was ok... 6 years ago.
Meantime, there are questions with 10x the views where my post has endured for 8 years with obvious typographical errors, yet it's never been touched, even with a mod at the time commenting.
If there isn't such a rule, one should be considered where posts are grandfathered in their current state and just left alone. First, beyond a certain age, editing a post for clarity is moot after a post has seen most of it's lifetime of traffic. Second, it will absolutely reduce the work of moderators if they only have to consider a set amount of time worth of posts, as opposed to the current "for all time".
Secondly, a more important point
On the point of the reason for the edit, I was under the impression that changing the content of a post was not allowed.
The post was written that way for a very specific reason. The content was changed not for accuracy, clarity or rules, but based entirely upon opinion.
Unless there's now a rule against joking, or there's a campaign for eliminating jokes from the subforum...
...then this post should not have been changed at all, based on the jokes interpreted or perceived tastelessness, and should be changed back.