OK try this, set your script to notify me by email that the link is broken. When folks do this I don't get bent out of shape, I thank them sincerely for taking the trouble to tell me. I then run around like a BAF to sort out the problem. Include something like, "We'll be rechecking every few days but links that remain dead for over two weeks (a month would be better) will be deleted." Give plenty of time, yes you need to tidy up but you don't dust your fine Dresden porcelain with an industrial shop vac. I would imagine that after six weeks the bulk of the housekeeping will have been achieved, after that its just routine.

(posting to both threads)