Yes, I find that people with OCD, approach their disorder in a much more effective way and we stutterers can learn from it. A lot of this does boil down to definitions and what we really mean when we use words such as Exposure therapy. People with OCD learn to observe their negative anticipations while resisting the compulsion (to build tolerance and perceive it as less dangerous), whereas people who stutter don't learn this in stutter therapy. I think one of the major obstacles to progress in stuttering research is that most researchers (and almost all therapists) never bother to define what they mean by words like “fluency” “stuttering” “blocking” etc. etc. Likely, as you correctly pointed out, if people with OCD, stuttering etc learn from each other and use the same terminology then the percentage 87.5% of people that outgrow stuttering, is likely to be much higher in my opinion