2008/9/13 Phil Nash pn007a2145@blueyonder.co.uk:
I think it should be clear of the context in which this thread has developed- that of obviously offensive or disruptive usernames; I have only this evening seen accounts auto-created on en:wiki by a known vandal that have obviously been created on other wikis in the hope that somehow they will slip under the radar. I've blocked on en-wiki, but that does not stop the perpetrator vandalising other wikis right now. My suggestion of an automated request to globally block remains; it would still be up to the stewards on Meta to decide.
That would be the best method. Stewards are there to act when it's unambiguously a good idea (e.g. global IP blocks on the worst crosswiki vandals), and are properly very conservative in what they do. So projects should feel safe with them.
- d.