does anybody knows how mylot is calculating earnings?

The MyLot FAQs say the following things about how earnings are calculated, which is a bit hard to understand: “Earnings are calculated based on a proprietary model that rewards quality responses, relevant discussions and images, and normal website activities.” Based on your activity on a day, you get some sorts of “shares”. No one really knows how much or those shares you get for which action. But you do get paid that way for starting discussions, responding to other user’s discussions and uploading pictures to your discussions – you get paid fix amounts for completing tasks and sometimes a little surprise for using the MyLot search engine. There is no scheme like “every started discussion does give you 10 shares and every comment does give you 2 shares“!

i think its 0.15 per discussion and 0.2 per image.. though it varies on length and relevance of responses

I think .05 per discussion and .03 per image.