>There are plenty of people demonstrating that Anubis reduces bot traffic.

"Anubis reduces bot traffic" and "[the proof of work] is not stopping anyone" isn't contradictory, especially if anubis isn't being benchmarked against non-POW alternatives like IP/ASN bans, or tls fingerprinting.

"it's not stopping anyone" and "it is stopping some people" are mutually exclusive statements.

You're selectively quoting the comment. It's clearly talking about the PoW aspect not being a serious impediment.

Who cares if its PoW or something else? Does it matter in any meaningful way?