...At least here, you gotta let me finish my story before you get to butt in!
Are you done? I've got something to say. Just kidding.
The people you describe are a dime a dozen. You kind of have to sort through those to find the good horse people. There are a lot of good horse people who are on here because they actually want to listen, learn and share experiences.
You can spot a good horse person at a barn or on a ride because they are always watching. The rest of the crowd will do their own thing and they don't care what you are doing with your horse. The real horse person sidles up and watches (unless their own horse is keeping them occupied), trying to see what you're doing with the horse and how it's working out for you. Their lips will remain sealed except for maybe some polite greetings, until they see you are really struggling, and that's when they may offer to try something with the horse for/with you, or ask you a question that might lead you to a different tactic.
I think a sign of a good horse person is that they will offer you an idea for a possible solution, but as a suggestion and not an absolute. Such as, they might suggest the horses are energetic from the nicer weather, but then offer to ride out with you for a gallop the next day to help with the energy.
Relating to the topic, I find that horses can often be a real equalizer. As someone said, a person's skills and abilities with a horse are not easily bluffed and you are who you are. I've gone out with people like doctors and some who walk around owning the world normally, but with the horses they needed reassurances and instruction on how to be confident and assertive.
It's been common for me to ride with people who have extremely different views about a lot of things in life based on what they post online. Yet I wouldn't know that otherwise, because that is unimportant out riding. I've discovered that sometimes the younger riders in teens and twenties can be more timid and the older riders can be rather bold. When we're with the horses, age doesn't matter, and if you can't handle the horse or situation or have talked yourself up, this quickly becomes apparent.