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I could ask visitors to click on a nofollow link for the moved page.
Disallow : /hiddenredirect.php*
Is your home page the one that has the most bad links (that generated the Penguin penalty)? In theory, until you can remove enough links, if you get lots of direct traffic, you could have your home page serve a 404 response, but still keep the functionality of it for direct traffic landings.
Or you could make a new home page (/home.html) and again 404 your original home page.
Can't locate /home/deploy/webmasterworld/code_format-v6.lib in @INC (@INC contains: /etc/perl /usr/local/lib/perl/5.18.2 /usr/local/share/perl/5.18.2 /usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.18 /usr/share/perl/5.18 /usr/local/lib/site_perl .) at decode-post-v6.lib line 27, <THREADDAT> line 10.
For help, please send mail to the webmaster (firstname.lastname@example.org), giving this error message and the time and date of the error.