Can she give you specific reasons why she doesn't think this forum in particular is good for you? Is she trying to get you to not read treatment and illness related things on the internet in general?

I mentioned these forums to my therapist yesterday, and he asked if I minded if he looked it over to see if he thought it was a supportive place (he didn't ask for my username), and to get to know it some. I figure if he has concerns after reading some here, he'll tell me specifically what they are and we'll talk about it. I think that's a reasonable level of concern for a t, and I was touched by it. I would feel differently if he just told me he thought I shouldn't come here.

I would be very wary in a relationship where it seems like the professional boundaries have been blurred. She could be trying to keep you from getting feedback about her behavior, and trying to minimize her risk of exposure/complaint/losing a client.

You aren't bad. If your therapist ever implies that you are a bad person, and at fault for how you feel, run like h*ll.