At least with a real HOA you have enforcement capability for those bad situations. In Natoma Station we have an egregious home where they don't mow, remove trees, and the place looks like crap. The occasional neighborly reminder only helps a little bit and only temporarily. In that case, it would be nice to fine theml, but we can't.
I must say, this is right on, Tessie. I formerly lived in a neighborhood where the HOA was a joke. I too get irritated when I get letters, but its simply part of the trade off. Just don't expect to never get a letter. Once or twice, they have been a little over the edge, and they actually apologized once for a notice that really wasn't warranted for having my garbage can in front of the house. I was cleaning the garage and it was literally out there for less than an hour, and I had waved to the security guy when he drove by so I knew who reported it. But the notices are just that, pieces of paper. Unless I think I'm truly within the CC&Rs, I grumble a little and then just do what they've pointed out before their next inspection. 9/10 times they are right.
What I do know is that I've never had to look at a front yard that consists of overgrown weeds, or washing machines in my neighbor's driveway, or RVs and Boats parked everywhere.
M.