Moderators should not receive any "points" or "badgers" or whatever for destructive actions but for constructive ones.
Destructive actions are: deleted post, banned an user and so on.
Constructive actions are: reviewed a post, pinned a topic, handled a flag etc.
If you honor destructive actions, your moderators may enforce them but more than necessary. This will result in unintended moderation behaviour.
A fine example is the moderators badges list of any StackOverflow site. As you can see, no destructive action will gain any badge, but the constructive ones.
Compare it with your expection of a police man. Do you want any badge for a police man for "brought 25 people to prison?" I don't think so. You wouldn't, because you may fear that the bring people to prison who are innocent.