I've just rolled out the first part of the user ignore feature:
You should see this button now when you look at someone's user page.
I have yet to add the ability to reveal ignored users:
But, these tweaks will come in time.
ZapRead does not encourage, or support censorship! For this reason, the user ignore feature is per-account. You can choose to block someone, but a moderator or administrator can not (at this time). I am working on some tools for moderators to issue penalties for malicious accounts, but until then, let's vote with our bitcoin on what content should be rewarded (or not)!