"Nice idea, but I think it would be better if it were commercial, with the blind user paying, the sighted helper getting paid, and the app developers getting a

"Nice idea, but I think it would be better if it were commercial, with the blind user paying, the sighted helper getting paid, and the app developers getting a cut. The payment could be by the minute." What makes you think your opinion on this matters? That sounds inflammatory but it's a bit pompous to look at an idea and say, "nice, but you should make people pay for it."