Most people are sending the smerits they have to posts, only few people are hoarding smerits. Some of them are not very active on this forum than to see some questions and answer them.
Or do you mean that there are some merit sources that are hoarding smerits? You can report them to theymos if you notice that. Theymos will likely reduce their merit allocation or remove them. Thrymos like people who make use of the smerits he is sending them.