Is it supposed to be portmanteau of tumblr and popularity? Or is this some sort of Ray Kurzweil singularity thing where if someone becomes so obsessed with tumblr that their posting becomes so frequent and efficient that it reaches perfect, exponential efficiency, sucks up all the resources of the internet, causes tumblr to become self-aware and launch a world-wide nuclear strike, eradicating 98% of mankind and forcing the remaining humans to band together and fight back against tumblr?

All that to say, is tumblarity a good thing or bad thing? Should I be trying to increase it or trying to lower it to avoid destroying human civilization as we know it? Enquiring minds want to know.