Guys, I've got something in my mind. Keeping merits in my account is useless for me as well as it always remind me of my responsibility that I am currently able to give them to someone who actually needs them.
Since you're kinda busy having no time to merit others, you can choose some deserving members and award the merit to them. Just like the 15merit you sent to the user meriting only newbies to rank up. Lets say you have 30smerit left, you can choose 3 users or any number more than 3 that a post they have made deserve meriting and they need the merit too for ranking up. Before awarding them the merit you can do a little background check to verify they're truly contributing in the little way they can to the forum (this should be done to avoid regrets). Then after sending the merit you can send them a PM advising them to merit deserving members with the 5smerit they each got. By so doing you have given the responsibility to others and your conscience will be free.
BTW I don't think 10merit for a post is much, suchmoon is sending 7+ daily.