This is starting to happen at my local course too. The crowds don't bother me, but the lack of respect for everything around does. I was playing with a kid that was no older than 10 or 11 years old today and we were sandwiched between two large groups of chuckers. Both of them couldn't stop swearing. I felt bad for the kid. Then finally the people behind us started getting impatient and began throwing while we were still playing our holes. Normally I would just tell these people to please wait until we're done, but I've just about had it with the language these guys were using in front of the kid anyway. When they finished the hole (less than a minute after we were done, go figure) I told them if I see them throw a disc while we're still playing the hole, it's going to end up in the woods. They didn't think I was serious, because 2 holes later they threw their first drive as I was still getting to MY first drive, and I heard them giggle. I walked over to the kid's disc, and threw it far and deep into the woods (hyzer over some tall trees). These kids immediately start talking trash and acting all tough, their "leader" started threatening me. When he saw that I wasn't about to back down, he backed off himself and asked his friend (that now lost a disc) "aren't you going to get your disc back, man?" inviting him to try to start a fight. I guess he didn't want to anymore
His friends were all uneasy too. After they all realized they didn't want to start anything he proceeds to make fun of the way I look. Like I give a damn! I just told them I didn't have time for their BS and went home.