Polo Rules

What I like is that people are being proactive about trying to make the game better, outside of "officially sanctioned" tourneys.

If a crease makes for a more dynamic game, people will readily adopt it. If it hinders it, people will just ignore it. It will play out by itself either way.

These.

It's a continual process of improvement, not the sudden arrival at a conclusive ruleset.

If every rule improves the game, even just a little bit, then great. If it doesn't we can always take it away again.