You can't police someone's thoughts.  We all have thoughts that shouldn't be in print.  I think this goes to the larger context regarding how these men really feel about bullying.  Words hurt and they can't be taken back.  
They are suffering the wrath of the public for their actions.  They are the ones who are now carrying the shame.  A heartfelt apology to the students who were demeaned and to the student body at large would go a long way toward making themselves accountable for their own actions.  Any less and it will mean nothing, only that they got caught and feel sorry for themselves for that.