And how many sources like you? Most sources send 2,3,4,7 merit per post. I used to send 1 merit per post myself.
With @DdmrDdmr statistic, we can see there are some people who did same thing. But i problem with sending more merit per post. The real concern is merit source send same amount of merit for almost all posts, ignoring the quality or how useful is the post.
With my bank of 500 merit, I managed to evaluate more than 500 posts. Only my personal smerit were helped out, so I requested a correction and an increase in the bank. When I see that a user evaluates 180-220 posts per month, having 400-500 merit in the bank, then it is clear that in this case, the correction and increase of the bank in the bank is just a whim of this merit source.
Each merit source have different total of source merit each month, only about 12 merit source have more than 300 source merit (according to
https://bitcointalk.org/index.php?action=merit;stats=topsend).