As far as running up the score goes, I don't like it, but I fully believe that some coaches hate getting the score ran up on them, so when they have a good team and a chance to run it up on the coach that ran it up on them, those coaches will take that opportunity.
From a fans point of view, many fans want to get revenge and run the score up on those teams that have kicked their butts for 10 years in a row. Like I said before, I don't agree with running up the score. I believe in getting young players as much experience as possible in varsity games when the opportunities arise, and believe me, those opportunities happened a lot this year for HC. The JV did get a lot of varsity playing time in the 2nd half of most games.
One of my brothers is on the chain gang and hears almost every word that opposing coaches say during the game. Oftentimes it's not pretty. Some of these coaches would be much better off if they led by example in front of all those impressionable kids that they are leading. Some coaches deserve what they get with their attitudes on the sidelines. Be respectful, get treated respectfully.
Edit:
Some things players and coaches have said:
- Break his leg! Take him out! Break his f***ing arm! Take out #**! Knock him out of the game! You need to hurt #25! Get him out of the game! When you get your shot, take it! Get him in the pile while he is down!
Some teams and their coaches are pretty disrespectful against HC. When players say these things, their coaches need to tell them to shut up. When the coaches are saying these things, they shouldn't even be allowed to coach any more.
Opposing teams are not putting their JV kids in when HC puts theirs in. Playing a bunch of freshmen against other teams juniors and seniors isn't always ok to do.

Couldn't agree more with you the above comments.