And charge for a spot! That is how modern graveyards work. That way only important people will have there tombstone with there name and score (like that one for scalping). Upkeep might be monthly or whatever.
Also add crematory that will destroy all those nasty skeletons that lay around Providence and turn them into ash (one would have to have a clay pot for this) that will keep there name and score as well. Also you could just empty the pot into the wind

First I wanted to suggest that ash could be used in potion brewing but that would just lead to more alt killing.