This amount of traffic is probably a coding error in someone's bot, but we might never know.
And that brings up something else. As I keep trying to say, Wikipedia is now being edited and
massaged by so many bots, it's absurd. No one even knows how many bots there are, the only
list of them is miserably short and outdated.
I suspect that Wikipedia is, most of the time (at least 60% and probably more like 90%),
no longer read OR written by human beings. It is now a bot-playground.
I have asked experts on bot editing of WP, and even they have no idea who runs the bots,
who writes the bots, which of the users are bots, or even how many there are. No one tries to
keep track, and the WMF doesn't care---all they care about is keeping edit statistics cranked up,
so they can keep begging money from donors. The "community" responded....by writing bots that
generate junk articles and pointless format edits. The existing articles get worse and worse, and
new articles look like
this and
this and
this. All generated by bots that scrape other websites.
NO ONE reads them, because such information is useful to no one who would come to Wikipedia.
Wikipedia is turning into a "zombie encyclopedia". Soon, it will be like the Open Directory Project--
a "closed" project, edited and controlled only by a small group of totally insane basement-dwellers.