Many journalists as well as some of the vocal 'secular' crowd indulged in what appears to be pure speculation. Here is one tracked end to end. Notice how he picks up the news while browsing the net for interesting stuff and starts a rumor spree.
To see the extent of this zealous spammer's handiwork, check out this screenshot of his timeline.
Journalist Mihir Sharma of Business Standard picks it up and retweets it. Upon challenged by an incredulous tweeple, he claims he had other info of this as well.
It is peculiar that Sharma responds to the issue only when it picks up on social media although his own organization had published news of 'exodus' earlier.
The theory picked up speed rapidly. Among other things, it was suggested since RSS showed up at the Bangalore station on the evening of the 15th, it bolsters the theory. Is it really? First of all it is all over on twitter. Also, guess who else knew roughly about the same time (or even before) about the 'exodus'? A man from a different city.
As of writing of this post (late evening of the 18th through early morning of the 19th IST), no clear picture has emerged on who spread rumors or indeed if North East folks fled because of threat perception of purely because SMS messages spooked them. But media persons not only ran amok with the theory (without investigation or confirmed info) but continued their slanderous campaign.