Usenet had the Cancelmoose, so message sanitization has always been part of the Internet. In this case, I see this browser extension as purely a tool of the end user and not a blanket threat to the peer community at large.

Usenet kill file, IRC ignore list, email spam filters, web browser adblockers, disabling JavaScript, using Archive.org/.today to read content, using plain text and a remote host to parse URLs to forward the content to email, RSS readers, converting content based on CSS selectors or json (e.g. jq) to XML/RSS.

The internet has and will always be about increasibg the signal te noise ratio for the user. The fact someone resorts to blacklisting entire comment section tells us something about how they view the quality of these in general; subpar.

It isn't just LLMs which contribute to that. Troll farms do, too.

[1] https://en.wikipedia.org/wiki/Kill_file