Anyway, I'm sure that hearing about your insights about progressing through therapy for those disorders would be valuable to many. After all they are sort of misunderstood, when they are even understood at all. Really just a question of what value you think you will get out of it, figuring out how much time you want to devote to it, etc. But if you love to write and like to share, blogging can be great fun. (And plenty of bloggers fold their blogs into books down the road.)
I wouldn't worry about who won't be receptive to it, but only those who will. For instance, if you think it will be better received by well-intended therapists than anyone else, write it in that voice. Write to your core audience.
I'm sure there's better advice out there than mine though.