I don't think anyone here hates any contestant on the show with a vengeance (if you do then yous seriously need to direct your energies elsewhere)
People here are just voicing out their displeasure and frustrations with certain incidents that transpire on the show.
No one in any shape or form, wishes for their ill health and as long as it is that way, the criticism is justified. Unless you go really over board and become a bully, constructive criticism is a good thing.
They've chosen this profession that is open for the general public to review, this is a part and parcel of their livelihood.