<…> i see that people like that are selfish people, where they prefer not to distribute their merit even though there are many quality posts on this forum that need to be appreciated with merit. <…>
I wouldn’t label anyone as being selfish for not participating actively in the Merit System (taken to the extreme, Satoshi’s account would lead the rank). As I mentioned before, there are people that have earned a pretty penny in terms of Merits, and do not engage in handing their sMerits around. If they’ve made decent enough content, earned a bunch of Merits, derived half a bunch of sMerits, and decided not to play the meriting game, so be it.
One can always choose to award a post with Merits or refrain from doing so, by taking into account whether the sMerit accounts here and there, though it’s not something that I take into account (I may have at some point, though it sounds like a distant memory).
<…> or if they don't have time they can give their smerit back to the merit source to be redistributed to posts that need it. <…>
Quite a few Merit Sources don’t deplete their 30 day sMerit allowance, let alone chip-in into their personal sMerits (they’re two separate counters). For the most the above would, on the one hand, trickle back to the Merit Source only 50% of the unwanted sMerits that the account had to begin with, and on the other hand likely just add more personal sMerits (and Merits) to the Merit Source that won’t be used for quite some time (Merit Source sMerits are always used first, and only when the counter reaches 0 do the personal sMerits come into play).