OK, fair's fair, I went back and re-read what Helen said. No, I don't think I did misunderstand.
Passing comment on a web-page is nothing like "walking on stage during someone's gig and insulting them in front of their entire audience, their family, their next door neighbours and their dog". I think I mentioned that some people go over the top on the net, but the term "nerd" is in fairly common use for someone who is heavily into computers/electronics, and that does seem to fit here. My daughter treats the term as a compliment. You should hear her on "townies"....
As for "no real reason", I think that a love of anything can generate a lot of emotion for its protection, clearly folk music enthusiasts are no different there. People should rise up in defence whenever they see something good under threat. Whether Jim's music actually threatens anything is another matter - I'm not going there until I've heard it.
I find this discussion has been informative, but agree that it doesn't seem to be going anywhere new, people are beginning to repeat themselves.
Mind you, anyone who takes their dog to a concert of amplified electronic music deserves all the criticism they get. (Joke. OK?)