I dont think that such behaviour is exclusively by season ticket holders.
However on rush hour trains the majority of travelers probably hold season tickets, and it is therefore likey that the majority of wrong behaviour will also be by season ticket holders.
Yes, if it occurs at peak times. But, even if as many as 1 in 1000 Season Ticket holders commits "wrong behaviour" that's a long way from saying that "Season ticket holders seem to think they are exempt from the railway byelaws". Adding the word "Some" at the start would have been fine though.
In fact, Season Ticket holders are far more likely to understand the rules than occasional travellers. There are always a small number who think they are above the law (or that it's too trivial to worry about) and they are the ones that we hear about here.
Perhaps it's time for a "Season Ticket holder gets to work and back safely every day, doesn't cause trouble and doesn't complain when the fares go up" story. There are thousands of us.
