Well she has mentioned issues with bulimia and some feedsters think they have seen evidence she might still be having active issues with that.So I think she certainly has some insecurities and issues that make her not quite healthy up there.
If you add a bit of learning issues that also tends to ramp up the insecurities. I was just noting that her ability to know she can't write well does to me indicate more of a learning disability issue than not able to learn issue, or willfully ignorant about writing issue.
I do think she has a stuck at 14-15 emotionally vibe about her. Too willing to go along to be accepted, the depth of the crush. A lot of times people with some kind of compulsive problem (addiction, eating disorders, etc.) do tend to stop developing emotionally. So I do think there is some of that going on.
At least when it comes to the pain she felt after writing the blog, I do feel for her, and that can be something that people don't get evaluated and may not know they need to (they may just agree that they are too stupid to be able to, rather than they have the smarts but need additional tools to get the job done). It is usually a little more obvious that one should know that bulimia is not normal and something to get help for. Not that everyone does, but it is a little more obvious to be something that one would at least know there is a problem that can be treated.