There is no sharp bend in 2012. I can easily interpret it as an gradual increase more from 2010 or so. Eyeballing charts is not science.

Call it whatever you like, it still has to be explained for a potential cause to be viable.

Not necessarily. It depends on whether this increase is just natural long term variance. The charts Haidt shows are very truncated. Data about suicides exists for far longer than the lines he shows.