I don't live in a HOA and most likely never will (I just don't like people telling me what I can and can't do with a house I own) but there are rules that the city has that are enforced by code enforcement. One of those is no RVs or boats in front of the front peak of the house (meaning they have to be kept either on the side of the house or in the back - not in the driveway) I personally don't like people keeping their boat/RV in the driveway - why would they want to hide their house like that.
But then again the city doesn't do all that well with enforcing the rules - most of the time people get violations is when someone calls to compain or there is other construction in the neighborhood and therefore code enforcement is around more often.
Not everyone uses their house to show off, I guess, sometimes you have some necessities, like storing your boat
Many years ago, our neighborhood had a rule that any doghouse you had had to be made of the same materials as the house, with the same architectural style.
We didn't get a dog when we lived in that neigborhood because my father refused to build a red-brick colonial doghouse with white trim.
That dog house would have looked so neat though!!!!!!!!
I bought into an appartment building, there are some rules that are not at all enforced. And I will be the bad one who try to get some rules enforced, like the ones concerning the underground parking garage.
Their are 18 appartments and an underground garage with 18 numbered spaces, all marked with white lines on the ground (like at a grocery store or so). I have space 2.
It is not allowed to store "stuff" in the garage. My neighbour (space 1) has on her spot (the size for one car, and she has a big car): her car, 2 motorcycles, a gazillion boxes with sampled of vitamine (she's a sales representative), boxes of toys, bikes, car seats, stroller, ... Some of her stuff takes up a lot of place of my space (my car is rather large and I'm not the best car-parker!). Also, because of all the stuff, her car passes the white marks in the front by about 3 feet. Which makes that I have to drive for- and backwards for at least a dozen times to get in my spot. It drives me crazy, and I would like this rule of no junk in garage to be enforced (many other spots have stuff/ junk, I don't like it, but it doesn't make my life more difficult.) I think it's also for security (fire) that it isn't allowed.
Oh well...
BTW, no pets are allowed according to the rules: they have dogs in at least 2 appartments (one never barks, the other always barks) and numerous cats.
ETA: another rule is no satellite dish (for television). This is a clever rule though, because it makes sure that no muslims will buy into it, without you having racist rules. They all need their satellite dish to receive arabic channels.
The big problem with them though is that they are very loud (espacially at night) and cram way too many people in a way too small house/ appartment.