Hello,
A more feasible proposal (than global blocking) which I've put forth
before is crosswiki blocking. A Special:BlockCrosswiki page on Meta
could be used by stewards to block a user on any project, preferably
updating the log on that project. The interface would work in
precisely the same way as the current crosswiki Special:Userrights,
with a steward blocking "Pathoschild's_proposal_sucks!@enwiki" from
Meta.
This doesn't have the problems of global blocking, and it would be
extremely useful in stopping wiki-jumping vandals. Without crosswiki
blocking, a steward needs to navigate to each project, register an
account or log in, navigate to Special:Userrights and set admin access
from Meta, navigate to Special:Blockip and block the vandal from the
local project, and switch back to Special:Userrights on Meta to remove
their admin access. By the time they're done, the vandal has hit six
more wikis. Obviously, the current way we do things is ridiculous and
not scalable in the least.
--
Yours cordially,
Jesse Martin (Pathoschild)