But the main reason why people SPAM CS durring the old days is because of lvl cap and how hard it was to get to
PointA - PointB with 6 people static. Now it can be duoed, soloed, or trioed so people won't be in that much of a rush as it used to be back in the days.
I actually think the opposite; if it took so long to get from A to B, why wouldn't you enjoy the cutscene when you first get there? Walking back to re-view a cutscene (because of the "rush" you say people felt the need to skip it) would be a bit dumb. Now it IS so easy to get back to the cutscene zone, you COULD just skip ahead and re-view later. After all, some people seem to blow through all the CoP missions within a few days now, that would require a lot of rushing and CS skipping to get done XD

I understand that this isn't always the case, but it is the more logical one from what I see.

Also, people helping for rewards are almost always in a hurry; they want to get it done so they can be back in town to see the next reward shout. The selfish, greedy ones, that is.