Because tile scanning uses view() the results were always presented with the southwest corner placed first the list, and since the for loop returns on finding a valid tile this means that a bot will always head southwest if that is a valid option. By shuffling up the turfs in priority we can be fairly sure that different bots working in the same area won't constantly try to fix a problem another bot is already fixing, and that when a bunch of bots are released into an environment with lots of valid tiles they'll usually fan outwards in all directions instead of all heading to the southwest corner to sulk.
Incoming
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