I mentioned this on the moderator thread but felt it deserves it's own thread.
Would it be possible to add in a filter that hides/greys-out any crag with the rocktype listed as "Artificial" as a default? As interesting as some of these historic training venues are it's not what most people are looking for when searching for crags and it'd be better for the majority if these "crags" were visually differentiated in some way.