A lot of her progression went like this:
Poster: "Hey, have you tried A?"
Marie13: "No, I'm not gonna do it, I don't wanna hear it, I'm doing it my way" (ie: validate my choice)
Poster: "Ok, but based on your question I think this is something you should at least try." (maybe keep an open mind)
Marie13: "Nope! Not no how not no way!" (this is my forum post get out if you don't agree with me)
a month later:
Marie13: "Hey check out how great A is! I'm so glad I knew that A was the way to go." (ignore the fact that I threw a tantrum when it was suggested earlier)
That's not a denial of the negative interactions people threw her way, unwarranted or not, simply pointing out that there is no victimhood here.
Some people are like that, some people take umbrage at that type of personality. Quite a few of her choices followed this path. When she didn't get affirmation she got upset and put people on ignore. When you create your own echo chamber it's really easy to just assume everyone is an idiot, even despite glaring evidence to the contrary. Whatever, it's some peoples personalities. When you put yourself out there on a public forum you'll interact with all sorts of people, some you will get along with, some you won't. Some people accept that you can have positive interactions with people you disagree with, others simply choose to remove those people from their narrative, despite the fact that it gives them tunnel vision. Some people think that they should be free of criticism despite the fact that this is a public forum with a plethora of varying knowledge and experience.
I get it, she doesn't like when people don't affirm her opinions, she doesn't like it when she puts something out there and it gets critiqued (I mean, nobody does), and she reacts harshly when that happens. That's absolutely her right to react that way, and I don't hold it against her. I wish her well and hope that she achieves her goals safely, and I hope she makes the most of the good will she has received here. She received lots of excellent knowledge, recommendations, even free gear, and I hope she takes all of that and becomes a good, safe, accomplished diver. I may not agree with the way she handles herself, but I don't wish her any ill will.
When people take their ball and go home, they rarely realize that it's a reflection on themselves. I think it's an immature way to handle it, but that's their choice to make.