There has been some similar discussion in the past, on how to deal with interwiki bots. http://lists.wikimedia.org/pipermail/toolserver-l/2010-November/003660.html http://lists.wikimedia.org/pipermail/toolserver-l/2010-December/003698.html http://lists.wikimedia.org/pipermail/toolserver-l/2011-January/003847.html
- Chris