User blog comment:Kirkburn/Technical Update: March 3, 2015/@comment-1764483-20150305151704/@comment-126761-20150305172034

Regarding 2: I believe I saw something like this recently (though I don't recall exactly where) - it was due to local JS, iirc. Can you send us a Special:Contact about this, with more info?

About number 3: noted below, this is being looked into.