Thanks for putting that data together. It certainly was eye opening, and as a bit of a numbers junkie myself I appreciate having the raw data presented instead of just summary information. (well, sort of raw. much more raw than others I've found and not spammy at all)
I understand wanting some more input and encouraging users to provide it, but they take it too far.
The way you have it set up with a pretty easy way to search the data along with some posts that highlight some interesting aspects of the data appeals to me a good deal more. I should have known by the site name, but I didn't know there was an actual job board at jobsintech.com until the 3rd or 4th time I visited.
I'm actually in the process of moving the data to the main website (http://www.jobsintech.io/visas), so I'm trying to not mess it up.