Hmm.
I just read the blog post. I didn’t find it as annoying as many people here have stated- it’s the only one I’ve ever read from this person, and indeed, it’s the first time I’ve ever heard of this person, so perhaps familiarity breeds contempt.
As far as finding your new international horse on Facebook, well that’s a giggle isn’t it? I don’t know about anyone else, but I find the entire FB thing to be a colossally screwed up time wasting bore. The very thought of wasting my life paging through post after post is enough to send me to the nearest whiskey bottle. I have no clue whatsoever why anyone bothers with this stuff, much less thinks that they can find their absolute next Vallegro on it.
So, that seems absurd to me, and perhaps she just couldn’t think of anything new to say?
What I was a little surprised by is her assertion that people are so rude to her. I don’t find that to be the main interaction description of breeders I interact with, although I could say that many of the people standing stallions seem to be flaky beyond belief, and it’s best to stick with the big guys, who have a frickin clue. Although not always. 
I was searching for a high quality young horse last year, and my main complaint was that horse people are damned difficult to get ahold of, and are often pretty wishy washy. But rude? Not my experience.
I did find that horse, but the IRS had other ideas of what I was to do with my money, so I was not able to consummate the deal. It was an American bred Hanoverian. It appeared to me to be at least as nice as the one which this blogger purchased. It was bred by a lovely but very small breeder for herself, but life interfered with her plans, so he was offered for sale. The price was very fair, and considerably cheaper than what the blogger apparently paid. Took me less than 60 days to locate the horse.
I have another, home bred, which I am starting this spring that looks at least as nice as the one the blogger purchased, actually, appears to have better movement. These horses are here in America.
To find them you need to network a bit- if you like a stallion, that would be my first call- to find the offspring. Stallion owners are often in contact with their breeders, and have a clue about the offspring of same.
To find a young horse you need to know something about bloodlines, conformation, and age appropriate movement of horses not already under saddle. There’s lots of bad videos too- because it’s not easy for the average backyard breeder with 2 mares to make a stunning video of a butt high 2 year old in 3 feet of snow- but that’s your prospective horse.