[pron]

I don't think I've expressed an opinion because I don't think I have one (I have strong opinions on Scala, but they don't apply to Haskell). I'm just pointing out what seem to be major obstacles to Haskell adoption in the industry. I'm not saying it's not worth the effort because I really don't know. I'm just saying it's not obviously worth the effort. Clearly, the data isn't there yet because there is very little use of Haskell in the industry. This may be unfortunate – or not – but we just don't have enough information to tell yet.

Haskell's roots in academia often steer the discussion towards theoretical PL, which seriously hurts Haskell adoption. I actually like tikhonj's comment because it focused on practicality rather than jargon, so in response I merely pointed out that Haskell is not 100% pure gain in practical terms. That does not mean we shouldn't all adopt it, it just means that the jury is still out.