In the automatic response they told me that they expect to give me the decision before this deadline. 

Contrary to the promise, I don't get any response.

There is an obvious disconnect here. A statement that someone "expects" to do something is not a promise, especially not when made in an automated response. If Igor misread this as a promise, and given that he has not provided exact quotes of the other alleged promises, it seems quite plausible that nobody ever promised anything, and that Igor was imprudent in re-arranging his life based on a pending grant application. If I'm right about that, then Igor has defamed EAIF by accusing them of "lies".

FYI Caleb has responded on the EA forum crosspost [EA(p) · GW(p)]

The title is a tad sensationalist and not very specific, which is fine I think, had you provided evidence. 
While I have no reason to distrust you, it normalizes bad conversational culture.

Strong downvote for style, upvote for content.
 

I've heard of many such cases of this from EA Funds (including myself). My impression is that they only had one person working full-time managing all three funds (no idea if this has changed since I applied or not). 

Exact quotes from emails between you and your manager would make it easier for outsiders to judge for themselves the degree of miscommunication vs broken agreements.

This is frustrating to discover, as I've found your posts quite helpful. Separate from the discussion about how this happened, is there anything people unrelated to the situation can do to help you very generally? whether that's staying on your existing track or making life changes in response to the situation.