The issue of speed is one that interests me a lot. The other week I went to see some free jazz guys, there was this pianist called Irene Schweizer, it was incredible. Some of the best live music I have ever experienced.
Anyway, she played technically brilliantly. But it was also harmonically excellent. But would you say that was 'aimless noodling' or rubbish?
I think there is a tendency, a hangover from the 80s, that when you see a guitarist playing fast to just dismiss it as noodling, of no harmonic interest. But if it was another instrument, in another genre, people probably wouldnt be so overtly critical.
Anti-shredders suck more than shredders, simply because they are often so blinkered in their views, IMO. Sure, some shredders are repetitve and metronomic, but not
all 