I only get 100 source sMerit to give out each month, and I am often finding myself being out of source sMerit and earned sMerit. Over the months, I tend to give out a lot of merit at one point during the month, so I often have either no merit, or a lot of available sMerit to give out.
You can appeal for more allocation, because lot of merit sources can't able to complete their quota of source merits given to them each merit so Theymos can consider reallocation who are often stranded in a situation with out of smerit before the next time period begins.
I had sent theymos a PM when I ran out of source sMerit years ago, and posted on one of the threads for merit sources to ask for more merit. Theymos has not adjusted the source merit allocations in a long time, and has not appeared to have adjusted merit sources in a long time, even as merit sources have become inactive.