I consider myself an anarcho-communist; it isn't always a rejection of authority but of unjustifiable hierarchies.
Your statement:
“Vast majority of people who subscribe to anarchism mean well, but often reject effective methods for organizing and effecting change at scale.”
is overly simplistic. If were gonna throw out stereotypes, MLs aren't really all that experienced in organizing anything outside a book club. Black Bloc anarchists have been organising street-level protests for years. It wasn't an ML that punched Richard Spencer….