I'm glad our league is easy going enough that I can't even see this ever being questioned. We are just a group of friends getting together to have fun and play some pinball. If it were so serious that we couldn't help each other out while playing, then I do not think I'd want to be a part of it.
Save the hardcore rules and discipline for the "real" tournaments. Leagues should be fun first, competition second. At least in my opinion.