bramley - 4:16 am on Apr 7, 2011 (gmt 0) [edited by: bramley at 4:20 am (utc) on Apr 7, 2011]
I think one should do the right thing for each page. The talk about G looks down on noindex, robots block or no follow etc are all misguided - just use them appropriately; not with regard to some magic proportion, just what makes sense in each case.
Panda is a scoring of the sitewide quality of the indexed pages. Delete or noindex? Do what's right for your site / visitors. Noindex does not mean nolook; I'm sure G can work out if noindex or nofollow if appropriate or underhand.
In my overhaul I found quite a few lingering old pages that i deleted and url removed, some things I blocked with robot, some things I tidied with htaccess and most of all a huge amount of pages that didnt need indexing, but were part of the site. Things improved for me, although I was not 'hit by Panda'; certianly it made me look again at these issues. So perhaps if 'hit by Panda' one wont see the improvements quickly but I expect they will come. Do nothing and you wont rebound. Tidy up (and that's what this is about, in short) and maybe some day ...
It's spring clean time
[edited by: bramley at 4:20 am (utc) on Apr 7, 2011]