Well, I'm all three so perhaps I ought to be convulsed with self-loathing !
The point was that you can't put somebody into a bracket in such a fashion. 'He is a commuter so he is a ****' or 'He's a reveller so I better not look at him or he will smash my face in'. Nonsense.
You might have a 19 year old girl who commutes to work every day, then on a Saturday night gets a train into town with her friends to 'revel' and then on the Sunday gets the train to go shopping. She has behaved very well on all of these trains. Then the Monday after her weekend she has the week on Holiday from work and has the train booked from lets say 16:15 from Leeds to London as she is going to meet a friend who lives there and see a show that starts at 20:30. But the train is delayed for two hours so she complains and gives personal insults to the guard because she has missed the show.
You might have a 50 year old man who uses the train once a week for a 200 mile business trip, uses the train to visit his family in Scotland, has just took a couple of train journeys up North to ride on the Settle-Carlisle because he wants to tick it off of his list. No problems caused. On the Saturday he is getting the train back from Bristol with his friends, his beloved Rovers have just bet City, he has had a few Drinks and they all have a bit of a sing song on the train, some other passengers are annoyed at the noise levels.
Both of these made up (but all over the country they do exist) travellers are leisure, commuter, business, reveller etc. all in one.
The worst passengers are the passengers that will be the worst no matter their time or reason for travel and that is based upon them as a person not whether they are commuting for the day or going for a night out.