I have tried to find any possible reason for why this functionality should be added to the system but cannot think of even one. Unless I am missing the obvious, there cannot be any reason why anybody would be benefitting by have access to this function. This option should not even be considered to be added on the shortlist of any potential patch.
[...]
rather give merits to ordinary people.
There's no need. It's totally unnecessary so don't waste your time thinking for any possible reason.
The main point I can see in this function is the same as giving pity to another user who has not received any merit by making a lot of posts.
OP, remember we are all ordinary people here
sending merit is an individual choice.