Babalu holds choke too long, fired.
Palhares holds heelhook too long, banned for life.
BJ Penn holds choke too long, no repercussions at all.
Hendo knowingly blasts and unconscious Bisping and boasts about it post fight, no repercussions at all.
Rampage repeatedly punches an unconscious Wanderlei while being restrained by the ref, no repercussions at all.
If you want to claim the repeat offender point of view, Hendo punched Fedor while he was unconscious and Rampage hit an unconscious Arona at least twice after that headbutt.
