what is a good discusssion?

a good discussion does not mean it should be of having 1000 response. in my point of view following things are more imp: 1 the subject must be very good. 2 there must be a healthy discussion 3every one could say the real emotions 4it should point out both pro n con of the subject 5it should not hurt any individual sentiments 6last but not the least many people should put there response