Justme, I'm sorry if I've offended you by quoting your posts. As Brandy says, it's a normal thing to do and people have been doing it since before the internet as we're familiar with it even existed.
Now I have to admit that I may pick apart people's posts in a note-entirely-nice way. The thing is, if someone's said something I disagree with I'll say so (more on that later), but if I think they've said something I disagree with but I'm not sure that's what they actually meant, I feel I should find out first. Of course I still have the idea of what I think they're saying in my head and that may come across in my post.
As for people not liking things that are posted, if we disagree with something someone's said and we think it's important, of course we're going to give our own opinions. You did that very same thing in this thread, so you know how it works. If several people have something to say that contradicts your post then it can feel like they're jumping on you, which is uncomfortable but they're not trying to be mean.
In the case of your post here (and this has been mentioned already but you don't seem to have acknowledged it), you appeared to be attacking most of the posters on this board. When you do that, people will jump to their own defence. Again, you don't like feeling attacked yourself, so you can understand why you got that response.
And finally (sorry for rambling), you keep saying you're straight-talking and seem to think that people have a problem with that. We don't, no-one here is being deliberately obtuse and what you refer to as "talking in riddles" is actually an attempt to be more clear, not less. Everyone thinks that what they're saying is perfectly reasonable and understandable. Everyone, including me and including you, sometimes says things that don't convey what they actually mean. If we don't know what you're talking about we'll ask you to explain it, and if you don't know what one of us is talking about you should do the same.