I'd like to offer my apologies in advance if the coming post offends you.
All I can say in defence is that it is simply my own personal opinion of the Harry Potter books, and that I've only read the first two. 
Anyway... naturally, I'm a long-time fan of Terry's books (obviously. I wouldn't be here if I wasn't).
But years ago, my sister recommended the HP books to me.
I tried the first two and... not to put to fine a point on it... wasn't too impressed.
They reminded me too much of the Enid Blyton books I read when I was a kid. The language, also, supported my suspicions: whenever someone was angry, embarrassed or confused, they went red. Harry went red. Hermione went red. Weasley went red. So-and-so went red. Enough!
Any more red and they'd become a STOP sign. 
I also didn't find the climactic scenes - the battle with the 'ultimate adversaries' - very memorable or thrilling. I don't even remember anything about those scenes, which speaks volumes. Oddly, the only thing I found interesting about the early books were the Dursleys (whose loathsome behaviour reminded me particularly of Roald Dahl's 'villains' in "Charlie and the Chocolate Factory", particularly Augustus Gloop) and the 'shopping' scenes, i.e. Harry buying things to take to Hogwarts with him. The rest... meh. *shrug*
Are the later books any better? I gave up after book 2. *shrug*
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Moving on to another topic, I've read that various people around the world have written their own versions of Harry Potter.
(The link has pictures of the dust jackets and short summaries of the plots, or lack thereof).
Most of these are hilariously bad; only one or two seem genuinely funny. But now here's my question: are these allowable under parody/satire, or are they - well - basically, illegal? 
I'm asking this because I myself have been writing for over 20 years (and publishing online now and then), and my concern is, obviously, plagiarism. Some of my work - well... I wouldn't be too concerned about, but much of it has taken me years to research, and I'd be horrified if someone stole it and made money out of it. As I see it, plagiarism is theft - it's dishonest and despicable.
So I'm surprised that JK allows it - or does she? Wouldn't her lawyers try to stop or suppress these cheap HP knock-offs? Can they even do it, given that - in China, particularly - the laws on plagiarism seem rather weak and ineffectual? 
What's your view, hmm?
Anyway... naturally, I'm a long-time fan of Terry's books (obviously. I wouldn't be here if I wasn't).
I tried the first two and... not to put to fine a point on it... wasn't too impressed.
I also didn't find the climactic scenes - the battle with the 'ultimate adversaries' - very memorable or thrilling. I don't even remember anything about those scenes, which speaks volumes. Oddly, the only thing I found interesting about the early books were the Dursleys (whose loathsome behaviour reminded me particularly of Roald Dahl's 'villains' in "Charlie and the Chocolate Factory", particularly Augustus Gloop) and the 'shopping' scenes, i.e. Harry buying things to take to Hogwarts with him. The rest... meh. *shrug*
Are the later books any better? I gave up after book 2. *shrug*
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Moving on to another topic, I've read that various people around the world have written their own versions of Harry Potter.
I'm asking this because I myself have been writing for over 20 years (and publishing online now and then), and my concern is, obviously, plagiarism. Some of my work - well... I wouldn't be too concerned about, but much of it has taken me years to research, and I'd be horrified if someone stole it and made money out of it. As I see it, plagiarism is theft - it's dishonest and despicable.

What's your view, hmm?