Not sure what GAW tries to accomplish by deleting the evidence when they watch thos thread and can see that everything is being archived
Maybe, but:
Some sites are not available because of robots.txt or other exclusions. What does that mean?
The Internet Archive follows the Oakland Archive Policy for Managing Removal Requests And Preserving Archival Integrity
...Sometimes a web site owner will contact us directly and ask us to stop crawling or archiving a site, and we endeavor to comply with these requests. When you come accross a "blocked site error" message, that means that a siteowner has made such a request and it has been honored.
Currently there is no way to exclude only a portion of a site, or to exclude archiving a site for a particular time period only.
When a URL has been excluded at direct owner request from being archived, that exclusion is retroactive and permanent.
(from FAQ at the archive.org site)
I think we need to be archiving the archive. Mirrors. Lots. Ones that do not follow the "Oakland" policy.