So in 2008, I remember Silver playing the role of the counter-pundit, basically just saying that the polls are very clear no matter what silly stories you tell yourself. Of course, that was in 2008, where it just became increasingly a slam dunk every day following the crash.
I don't remember 2012 as well, but from what I recall it was basically the same thing, regardless of Romney running much closer than McCain. Silver basically just spent most of his time talking about how Obama had a solid lead.
So it seems really weird that he's emphasizing the closeness of the race despite the consistently wider margin than what we saw in 2012. I have a few possible explanations for why this may be the case, from most to least generous.
1) I am misremembering 2012, and Silver emphasized how close that was all the time.
2) Twitter is more popular now and we see more snarky 140 character comments.
3) Conventional wisdom now has a bigger Clinton lead, whereas it had a close race in 2012. So the message only appears different because of the contrast to everyone else.
4) ESPN is more interested in click bait than the NYT was, so Silver has more institutional incentives to engage in contrarian punditry this cycle.
5) Silver repeated doubled down his reputation on Trump losing in the primary, and was majorly embarrassed. Now to trigger shy to say much of anything other than "it's really close you guys" in fear of getting burned again.
IDK, he really seems like a completely different person this cycle. All of the above, maybe?