You can download zachninme's knex blocker script (search for it on the site) and install that, then edit the blacklist to have the user's name. You won't see comments from that user.
Bio:Hello! My name is Seleziona.
Most of my instructables are of knex because I just love it. Ever since I was young I've been building things.
There's not much to say except that I'm open to ideas and ...read more »
PDF Downloads As a Pro member, you will gain access to download any Instructable in the PDF format.
You also have the ability to customize your PDF download.
In fact, I have no idea what I was saying with that line...skip the "no lice..." My apologies...
the rest is valid though