reese's law
"As a twitter hashtag grows larger, the probability of a comparison to terrorists or ISIS approaches one." There is a tradition in many groups that, once this occurs, that argument is over, and whoever mentioned terrorists has automatically lost whatever argument was in progress. Reese's law thus practically guarantees of an upper bound on a hashtags lifespan and overall size.
Reese's law: The #GamerGate cabal are the technology world’s ISIS.