to add rel = "nofollow"?

[SKSLink.com]

Where and what codes to add in Subs.php these code for insert rel = "nofollow"?

[TheListener]

Would this mod help at all?

http://custom.simplemachines.org/mods/index.php?mod=1236

[kat]

Personally, I wouldn't bother...

http://www.searchenginejournal.com/13-reasons-why-nofollow-tags-suck/4410/