I've read the sentence about anarchists ten times and I have no idea WTF he is on about. Btw the nerd's name is Peter Hudis.
Edit: FFS Tankies and anarchists stop shitting on each other here. Take your struggle session elsewhere. You're both my comrades.
This may be true but you are being a bit generous in assuming thats all the writter is saying.
Both using the narrative of "revolutionary 19th and early 20th century socialism were TAKEN OVER by Stalinism and Marxism Lenninsm " with negative connotations, pointing to it as a/the reason for the defeat and as a mistake nontheless and taking the positions of "non of them succeeded in representing a viable alternative and all degraded into capitalism" are positions less nuanced and neutral historicaly compared to the ones you describe