José Manuel Calderón Trilla
Many of us here learned from those texts or those courses. It's easy online to say that materials being out of date isn't a big deal, but it can turn people off the language when the code they paste into ghci doesn't work.
FWIW, I am a newbie, and currently learning a lot from the web. I've had a different feeling. Whenever I read something like "This is historical, and should have been fixed, but isn't yet", it were these sentences that almost turned me off the language, because I had a feeling that there is some stagnation going on.
From the POV of a newbie, I am all for fixing historical hickups. However, I realize that I have different priorities compared to long-time users and people needing to maintain a lot of existing code.
Just my 0.01€ -- CYa, ⡍⠁⠗⠊⠕