One of the things about this whole topic is and why I think there may be different results from testing is as a search engine you can write so many different conditions into the if()s it's ridiculous, and you don't really have to treat any two situations the same way and how you vary the treatment slightly can be based on anything you have access to...
if (there's only one link to the page, treat the nofollow as ...)
if (there are 3 links to the page from the page && one is nofollowed ...)
if (there are 3 links to the page && 2 are nofollowed ...)
if (there are 2 links to the page && 1 is nofollowed && the link text in the other link is 'click here' || (or) the link text in the other link is 'see more' || (or) the other link text is 'home' || (or) the other link text is 'domainname.com' ...)
if (the count of the links to the page is > 1 && the count of the nofollowed links to the page / the count of the links to the page is <= .5 ...)
if (the total number of links to the page in the DB is > a threshold number && the total number of the links nofollowed / total links on the page to the page <= .3 ...)
I could seriously do this for hours and probably 1000+ lines of code (just to figure out how to handle a stinking nofollow link(s) on a page) if I started getting into PR and other factors, and IMO from having written code, to think anything Google has in it's algo is not 'fuzzy logic' that can be adjusted by many factors is probably lack of coding knowledge, because it doesn't take a team of programmers to write a statement to say 'nofollow=action' and apply it to every single case, but to be able to 'adjust, weight and vary' factors until you get a better set of results does...
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Anyway, I think sometimes we (I do this too) get a result and think 'that's the final answer' and don't really stop and think how complicated an algo with 200 factors is, and if you think it's just straight through factor=action, you're probably really mistaken... I know MC gets garbage for being noncommittal sometimes, but what people don't realize is how many factors or 'options' go into something, so 'uh, er, usually you want to... blah' or 'in most situations... ' is really the right answer.
If you watch the video in linked in the other Internal nofollow thread he doesn't say to 'not ever use nofollow internally' as some are trying to say, if you listen to the exact wording he uses he says 'usually' or 'in most situations' or 'relatively, no' because it CAN often times do more harm than good, but he doesn't say 'always' or 'don't ever for any reason' as some people are trying to say.
[edited by: TheMadScientist at 7:01 pm (utc) on Jul 6, 2010]