Moving Between Cars on the Subway

There was an article in the Times about how the new rule that prohibits moving between cars on the subway has resulted in the police catching people involved in crimes on the subway. Apparently there have been 1,995 summonses issued this year for walking between the cars. Personally, I liked the old rule. If I didn't like someone in my subway car, I could move to another subway car to avoid them. Now, you can't; at least not without risking a summons. I understand that they are doing it to stop crime (and also because it is dangerous), but I don't like it. I've walked through subway cars since I was very little -- my father and brother and I used to go into the city on Columbus Day and we would occasionally walk between the subway cars or between cars on the Long Island Railroad. I also liked walking between cars because I could walk up (or back) on the train so that I was in the right position for the staircase. Now, I'll have to pre-walk.
New York, incidentally, is the only place that allowed walking between cars. It's certainly not allowed in DC and I don't know of any other city that allowed it.
This new rule was part of a slew of other rules that they implemented, including one prohibiting you from jumping the turnstile even if you had a valid Metrocard (by which they mean unlimited ride)
This is a technical explanation explaining why people jumped the turnstile, but if you are going to ride the subway in New York City, it is worth reading:
When you have an unlimited ride Metrocard, once you successfully swipe it at the turnstile, it locks you out of the subway system for eight minutes. This is to prevent people from buying one unlimited ride Metrocard for four of their friends and using one Metrocard for all four people.
Under some circumstances, the card can be locked out, but the turnstile not released. Usually this results from people not obeying the "Swipe again at this turnstile message" That message really means just that. If the person doesn't swipe again at that turnstile, then the card will be locked out for eight minutes. The person, who being a New Yorker, is in a rush, decides to jump the turnstile. If the person was summonsed, he or she would just say that they had a valid Metrocard. The MTA got tired of this excuse.
(This problem also occurs if you have a regular farecard, only if you don't swipe again at that turnstile, you can lose the fare that you paid)