@HighAltitude I've surfed plenty, and I agree its a great activity for when I have a lot of friends on the boat and want to do something social to enjoy the lake. But I disagree that its not easy, its quite easy in fact. Sure, trying spins like 360s are harder, but I've had a number of friends who had never been pulled behind a boat get up on their third try and are letting go of the rope by the end of the weekend. Now, that's a great thing because I see them have fun and enjoy themselves, but its painfully obvious how easy the sport is. And when it comes to trying tricks, its so low risk that anyone can try it (you don't have to have guts like on a wakeboard).
All that said, I don't bash people who are out having fun surfing. I will however, bash many of the surfers that I see on the small lake where I ski. Families and partiers alike, many of them have 0 lake etiquette. They drive in circles, get too close to your boat, and outright cut you off if even if you have a skier/wakeboarder being towed. Hell, there's 1 guy in one of the bays who has outright talked about his hate of skiing, he says its "too fast, dangerous to others in/around the lake, and the boats are too loud". So, if he sees someone skiing in the bay (might I add the best place on the lake to ski) even if there's nobody else in there, he'll lower his boat off the lift and deliberately ruin the glassy water (he'll just drive in circles in the bay, not even towing a surfer).
I've never once seen a boat full of skiers or wakeboarders have such low lake etiquette like surfers. It's hard not to pass judgement when you have people in their big surf boats ignoring everyone else on the water.