Best solution right now, if you can't wait like other merit sources for your merit to replenish before you start meriting again and don't have earned smerits to send then
Report unmerited good posts to Merit Source. I'm sure your follow merit sources will be glad to help merit those posts you report there.
It's not going to happen. As I mentioned on
my first reply he is spending merit on shitpost then how you expect that he could find good post. Will you encourage to send merit on this kind of post ? I don't think even any others merit sources will consider to send merit such as shitpost. Problem isn't about merit budget, problem is he sending merit on shitpost.