Fifty responses for a single discussion or ten responses for five discussions ?

You missed one thing in there. Even statistically they are the same but we are going to earn here based on quality response which should be included in your choices. So, it's the same but it boils down to the quality of response you got from each of them.

I don't think in the year I have been here I have gotten 50 responses to a single discussion. But others certainly have. If I start 5 discussions I am happy with 5 or more responses. Even one response is better than a discussion that doesn't get noticed.

Mostly, a discussion that get many responses are discussions that asking what we like and not and I think this is not a quality discussion. We are earning depending on the quality of our responses so even if we post little responses but they are of high quality, surely we will earn more than responding a yes or no to a certain discussion many times.

Are you speaking strictly financially? :) Because if you give truly quality responses either way, then you will earn the same amount of money. However, fifty responses for a single discussion can get a bit tiring no matter HOW interesting that discussion is. ;) I think that we all need some variety and spice in life, so I would go for ten responses for five discussions. :)

For me I reckon fifty responses to one good discussion is the best choice. I wouldn't start making many discussions and only get a few responses, I would make one, concentrate on it and see how many responses I can get on that discussion first. Even though alot of people love starting discussions, I reckon it's important to also respond, because mylot will be very boring if there's a million discussions a day with no responses, and only 1 response maximum.

I still get a thrill when someone responds to my discussions as it is nice to think other people have taken the time to answer.It is very interesting to hear what other people might think.