These are not Anarchists. These are Anarcho-Communists. There's a difference. Anarchists want no laws, no rules. Anarchy in itself is a might-makes-right political view. If I want what you have, you'd better be able to defend it, or it's mine.
Anarcho-Communists simply want to destroy the old order to bring in their order. They only want anarchy when it benefits them in their cause, otherwise, they want strict laws to enforce against those they wish to bring down.
These Anarcho-Communists would s*** themselves if true Anarchy were to rear its ugly head.
I disagree, the actual people that are on display are breaking laws and do not feel bound by laws. Adding the Communist label implies they have some overriding principle which they do not. They are just mad and want revenge for their PC culture that went down the toilet.