What's the most important thing you've learned from visiting here?

[2Tone]

But I learned the wisdom of check/calling the river. Before reading the threads on this, if first to act, I would try to punish anyone drawing on the turn, then bet again with, say, two pair on the river. If my opponent missed his gutshot straight or set, he’d fold. If he made his hand, he’d raise me. -EV move for sure. Now I check/call the river with good hands, bet the river on total bluffs or superior hands. Duh, but it helped my game.