Isn't part of the confusion coming from the inconsistent naming?
Has sent .. merit .. times
Has earned .. merit .. times
So "sent" = S and "earned" is R.
I suggest:
Has sent (S) .. merit .. times
Has received (R) .. merit .. times
That's one of the problems, but also the arrangement of values - some in a table, some in plain text, repeating the same values in both places, etc - needs to be redesigned.
Any wording inconsistencies also need to be fixed across the entire site and double-checked against Bitcointalk so that we name the same things the same way.