Hmm. If people take number 6 seriously enough we may be net ahead.
Sadly, I'm betting on "no measurable change."
So if enough people are like me, it won't be the one-liners that benefit.
2, 3, 5 and 7 are all fairly minor, I think.
But 1 and 4 are all about popularity, and number 8 leads to shallow discussion. It seems wrong to me, to assume that anything valuable must be stated within the first two or three exchanges.
Bring forth the karma!