Unfortunately, Hacker News has decided, and considers the censorship of comments for any reason at all (including no particular reason) to be not only compatible with, but vital to, reasoned discussion.

If you prefer to make your own decisions about what comments are worth reading, and use Firefox, here[0] is a userscript that will unfade them.

[0]https://gist.github.com/kennethrapp/5b5e413220afb93c9c93