This question already has an answer here:
I just began an answer with
Ha, I just ran into this myself!
but it would come out as
I just ran into this myself!
and an edit would not help.
Now I see how that beginning of an answer is not strictly adding to its content value, but it seems like it does not hurt and – especially with regard to the recent push for more friendliness on SE – make the user experience a bit more … natural. Maybe the software is a bit too eager with manual editing of posts?