Am I reading this right… they tampered with an archived page and then changed it back? How do we know? Is there another archive site that has before and after proof?
Specifically, they changed a "commenting as: [their alias]" UI element to "commenting as: [name of the blogger they were fighting with]".
Compare (the changed element is near the very bottom of the page; replace the "[dot]" since these URLs seem to trigger spam filters for some commenters):