The biggest issue that I see with publishing this work in a physics journal is that although time travel is certainly a concept in physics, the research involved here is not physics research. I'd describe it as sociological(?) research intended to shed light on a problem of interest to physics. That may seem like splitting hairs, but there's a real question of competence here: as a physicist, I don't feel especially qualified to assess the methods they used or the reliability of the conclusions they draw. If they were instead describing an experiment to look for anomalous travel times of neutrino pulses or something, I'd know where to start: measurement apparatus precision, clock synchronization, etc. But here the observations are based on natural language and the conclusions are based on theories of how information spreads in social networks.

Like most physicists, I have zero formal experience in this. It honestly doesn't feel like a topic for a physics journal even though a reliable positive result would have profound implications for physics. In the same way, I wouldn't expect a technical article reporting measurements of carbon flow in the environment to be published in a political science journal, even though climate change might have profound implications for global politics. [Discussion note: the validity of climate change has nothing to do with my point here.]

All that being said, I also don't find their negative result to be particular compelling. If their two search terms were "Pope Francis" and "Comet ISON" as described, well, Comet ISON was a dud (and thus won't be much of a topic in the future), and it's easy to imagine scenarios in which future time travelers would not have a particular interest in Catholic history. And that's quite apart from the possibility that time travelers would make some modest effort to avoid asking their neighbors about future events. Maybe that's all accounted for in their paper in a compelling way, but I honestly don't see any way they could ever argue for more than a very limited negative result. And I'm not convinced that's publishable in any sort of competitive journal.

It's very clear where it's going. The number of administrative staff at colleges and universities have skyrocketed in the past 30 years.

Just like in the corporate world, corruption and the proliferation of unnecessary management have sucked revenue to the top.

http://www.salon.com/2014/06/08/colleges_are_full_of_it_behi...