What you think guys? What should be the blog comment link attribute - DoFollow or NoFollow? The main confusion is that, typically we make comment links as nofollow, but if we make it dofollow then what prob will arise?
Google does not like links to bad sites and so you may end up seeing lots of junk comments just for the sake of getting a link.
I think at times having a dofollow is better because lot of people in lot of forums post links to dofollow blogs and so you may end up getting lots of links but remember the value of those links may not be great.
Do-follow:Increase your back links with do follow sites. In do follow Search engine crawl links. No-follow:Link is not counted in Google eye. In no follow we can increase the traffic but search engine never crawl links.
Do follow also pass on PageRank, which is why link buying is such a big business right now. Nofollow on the other hand doesn't pass on PR. While some link builders opt for nofollow links, this is the preferred way as Google sees it for paid links. Hope this helps.
probably spam will arise.. anyway i dont think that google devalue nofollow links because they show on google webmaster tools.