While i understand your request, it is also possible to āReport this postā with a custom reason and just explain - it happened to me.
I donāt think its happening that often, do you?
But your reasoning with the post-history is good in my opinion. I think it would be fine with increasing this from 1 month to 6 months.
But i also think that the āreport own post with reasonā is valid, but its not intuitive at all.