You can do this to put somebody on your Ignore List:
1. Click on their name at the top of one of their posts.
2. Click on View Profile in the drop-down menu that appears.
3. Click on Add to Ignore List which is the third item listed on the left side of the Profile page.
Once somebody is on your ignore list, you won't see any of their posts again. You will see that they have made a post, but you will see none of the text. Instead you will see something like this:
This message is hidden because New2u is on your ignore list.