In reply to samben6:
At the bottom of a crag page in the logbook there is an add missing climb button.
Unless the eliminate is significant don't be surprised if it's not entered as a new climb by the crag moderator...some mountain routes have so much potential variation on their own, it could lead to scores of minor eliminates (and clog the pages).
Most just tick the climb and add a comment noting the eliminate.
Post edited at 08:19