In reply to bpmclimb:
If they have proper details (FA date and climber etc.) then approve them, if not, then leave them in red, maybe with a note asking for FA details.
If you delete them then they'll only get re-submitted at some point in the future, so leave them in existence in some form or other. Just because the rest of a crag is 25m high and clean doesn't mean that the 'scrappy' routes or boulder problems at the end shouldn't be recorded. I often create a 'buttress' called 'bouldering' on the crags I moderate and put all the boulder problems in there, that seems to work well (no-one's complained yet!). I also put in a buttress called 'unsorted climbs' at the end where I put stuff whose location I'm not sure about, and where new submissions go by default. This also seems to work well.