referrals earning all add to his/her invitor?

As far as I know the person who invited you earns 25% of your earnings.

I wonder too

well usually you get 25% of whatever your referral makes from the topics he posts, responses he makes and images he uploaded but you don't get paid if your referral earn from his referral, for example, you have a referral Joey, and Joey has a referral Mary lets suppose Mary made $4 a day(from posting and images), then Joey will get $1 from her, but you will not get 25% of this $1 which Joey made from Mary, because mylot doesnt pay for 2nd tier referral i hope you got your answer

As far as myLot is concerned, referrers earn 25% of the total earnings of their referrees. ^_^