Remove user name from posts for Guests?

Remove user name from posts for Guests?

by B Brown -
Number of replies: 1
Hopefully someone can assist me with an issue with our 1.7 install. I am using it in a K-12 setting and would like to allow Guests into the site, but US law is pretty sticky about releasing student information. I want to remove the User names from the posts (or replace the userid with Anonymous or Studen) when it is viewed by a Guest account. Is there a simple PHP edit for this?

There were some solutions posted here, but everything looks to be for 1.6.3 or so.
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