The US neither has nor is presently debating any copyright laws which impose (or threaten to impose) a debilitating burden on the Wikipedia editing process and its content.
Jimmy Wales just described it (in a Facebook post) as "Wikipedia Italy is on strike against an idiotic proposed law". While Jimmy Wales is no longer synonymous with Wikipedia governance, his implicit endorsement of the strike is definitely Something.
Though people are fighting on the mailing list and calling for all the Italian sysops be desysopped.
Meh. It's as generic of a term as "Windows"; why can't every service everywhere be able to have "huddles" if they feel like it? That would make too much sense....