It's all very well to say it should be dealt with.
But the fact was it wasn't dealt with.
Posters who had their serious posts mocked were encouraged to report it.
But the reporting mechanism didn't facilitate this at all because the only way was to report your own post, tick the Other category and explain in the Other Details box that you were reporting the inappropriate reaction and not the actual post itself. On one occasion they actually deleted my post and I had to point out it wasn't my post that was the problem. The moderator obviously didn 't understand that we had been told to report the inappropriate use of the emoji. When I questioned why they weren't following their own guidelines my post was restored and I was told action would be taken regarding the other poster. It certainly dented my faith in their moderation abilities.
And although when the misuse was reported we were told they would do some follow up with the poster misusing the emoji it was never made clear whether they actually did do anything or what that action was.
So yes it's a shame some malicious nasty people enjoyed misusing the emoji and spoilt things for everybody but I don't see how bringing it back would make things any better.
And as I've repeatedly pointed out it's easy, and actually more community spirited, to quote the amusing posts back and actually say that you enjoyed the post. Or tag the poster and praise their funny post. We managed for many years without the laugh emoji. It was only available for a short period of time. It caused a lot of distress. So why bring it back?
There were numerous threads and discussion about the emoji before it was withdrawn. There have been numerous threads on it since. I don't see why we are still discussing what turned out to be a negative experiment.
I welcome the Support reaction as a positive thing. I only hope the nasty malicious posters who misused the laugh emoji don't find a way to use this in a negative way.