"Just talk" is a great advice to YOU. I don't mind it when someone completes a sentence for me, I know that's not the case for many. The reason a lot of ppl would see "just talk" as a crappy advice is because it's similar to saying "spit it out." It's offensive because at this moment I can't "spit it out" and we're both aware of that. We both know that im struggling so how the hell is "just talk" going to help me. If we could all "just talk" then we wouldn't be here, pouring our hearts and sorrows out on this reddit. "Just talk" is insensitive because we know at this moment I'm struggling to "just talk" People who usually use the term are those who have no clue about what stuttering entails. If they do, they won't be saying it. A lot of ppl who speak fluently know that it's the worst advice. But to each their own I guess. Also, I'm a nursing student who works as a personal support worker and I can tell you, there are many people who use a wheelchair and are also capable of walking to an extent. They don't walk perfectly, but they do walk. There are days when they don't need the wheelchair and there are days they do. Same with us, we don't speak perfectly but we do speak. We speak alright, but to an extent, and only for us we don't have a "wheelchair" we could rely on the days we can't speak. So the same does apply to us. I know people who haven't spoken fluently in their life.