About [[MediaWiki:Abusefilter-warning/en]]

I tweaked the message to be so generic, it must be correct now :).

Yes, but it still says "this edit", while the AbuseFilter can (at least, I don't know if more) also prevent page moves, as Nemo said.

Should we call it "contribution" or is this MediaWiki jargon? Or maybe "action", superusers might think of "log action" but it should be clear enough for most people.

I think "action" is clear enough indeed. - Submitted as gerrit:41387.