It was Tony Hancock who pointed out so truly that the vast majority of humour is made at the misfortune or expense of someone else ? Think about all the jokes and comic routines you know - most of them are at somebody else's expense.
Agree with hellibobs and whiffey. If you don't want to draw attention to her Laurence I don't think this was the way to go about it- do you?
How about stepping down from your high horse and seeing the posts by her for what they are. Inflammatory posts designed to annoy the residents, which she's doing spectacularly well!