I've come across plenty of juggalos along the way, of both camps described here. On the one hand you have the shitheads described earlier. They would be shitheads whether they dressed and acted as a juggalo or not. People like that have existed forever and just put on a new face as time progresses.
On the other hand are the true juggalos. They come in many forms, some more exterme than others granted, but for the most part they are all courteous and very inclusive, anyone is welcome that isn't a hater.
Just my two cents