To me, alot of people don't like these things. Why not just get together, and get a majority of the people under it to go against it? wouldn't that unseat the HOA's power?
Because the HOA was formed by a majority wanting it in the first place.
HOAs typically get formed to make the neighborhood conform to a single look. It is the kind of people that sit around and grumble about a lawn not getting mowed three times a week, too many weeds in someone's lawn, or that kid working on his car in the driveway.
To these people it "ruins" the neighborhood.
Now, picture the type of people you know who sit around the house and gripe and complain about how other people chose to use their own private property. Not many of them are likely to make their voices heard online (hence why you see a huge amount of HOA dislike online), but they will get together at the community center and complain together. Add to that the fact that those who aren't like that typically don't have time to attend a meeting about an HOA, or to even read a flier about a meeting for an HOA, and suddenly when people show up to discuss an HOA being formed, it is just the people that want it.
Those that don't usually just grumble in silence and move on with the more important things in their life, because they have bigger things to worry about than their neighbor's lawn.
But then every once in a while something happens that extremely inconveniences those who are opposed to it and you get what we have here. These few stories make huge rounds and people can't understand how any HOAs ever form.
In this case they can't petition because most of the home owners are parents of students living in the neighborhood. Which means, the HOA was formed by residents who were tired of their neighborhood full of college students not being kept up to their standards. The home owners weren't there to argue against an HOA and this guy can't get to them to get a petition signed.