I don't think people on this board WISH her bad fortune. I think that there is the following:
She was involved in the disappearance of Danielle. It would appear that DW is a scapegoat, and that the VAN DAM's, and Denise,BARB,Rich,Keith, are hiding something.
From Denise's statement about her job, she makes it abundantly clear that she blames DW for losing her job (not herself for smoking pot). People that are used to lying, are used to blaming EVERYONE but THEMSELF.
So, people on this board most likely just think that DENISE got what she deserves, or maybe even, she didn't really get what she deserves, but a least justice was served in a tiny way.