Agree with this. Actually, I think disfluent speech is in and of itself not the biggest issue. The issue is that there is a societal assumption that disfluent speech = lack of confidence, reduced intelligence, lack of knowledge, etc. Those the are the concerns that I most often hear expressed by professionals who stutter. "My speech [disfluencies] don't bother me but I'm concerned *people will think I'm nervous/not as smart/etc.*" This is probably why advertising and "owning your stutter" are so powerful. You confidently take ownership of the speech disfluencies and that has the effect of removing those incorrect associated assumptions. [EDIT]: I think the other thing with advertising is because stuttering is relatively rare, people don't automatically assume that's what's going on! Statistically, it's more likely that disfluent speech *is* due to nervousness than stuttering (especially in something like a job interview where everyone is nervous). So it's even more critical to break that assumption.