When using the batch modification tool, there should be the option of updating the last-seen time.
Created attachment 2586 [details] [review] proposed patch This adds a syspref "UpdateLastSeenBatch" that will make batch modifications update the last seen time of their item.
I would think this option would be better implemented as a checkbox on the batch modification screen so that you could choose on a per-batch basis depending on the kind of operation you were doing.
+1 to owen's idea
That's not a silly idea. When I get some free time, I'll see what I can do :) (unsetting the patch-sent so that I notice it in my reports.)
+1 for making this a checkbox.