I find it amazing how many poolplayers, even good ones, don't know the correct rules and/or make things up as they go along.
Exactly! It's partially because so few take the sport seriously and only look at it as a game they happen to enjoy playing. So, they just make up the rules as they go along. How is any outside source going to take pool seriously, when we don't even take it seriously enough to follow a set of rules?? Most don't even have any idea where to find any rules. And, to make it worse, every league out there has to come up with their own set of rules. Bowling? One set of rules. Golf? One set of rules. Pool? Hundreds and hundreds of sets of rules.
Last tournament I was in, I asked what are the rules? Director said BCA rules. During a match, a referee was called over. He made up his own rules, and when questioned, finally admitted they were "modified" BCA rules. He didn't even know what the BCA rules even were, so he ruled by APA rules. Yes, it changed the outcome of the match, too.
edit: In this day and age, when it seems everyone has a phone that connects to the internet, there is NO excuse for not looking up the rules and going by them.