yes blog commenting is still valuable for Seo if commenting should in right process and great content.
why do you think it's dangerous? in what way? well, if blog commenting is done correctly i.e., no spamming and what not, comments related to the subject of the website, I strongly believe it still has a huge advantage (regardless if the the blog commented is no-follow or do-follow). was just so curious on how you can easily drop a statement like that.. can you cite a better reason?
I am with you, I still do blog commenting up to now, I don't care if the blog don't follow, at least I got traffic
yes but getting approve from doffoloow blog is hard, except you get involve in the article you commented, beside, most of blog are not nofollow
YEs they can still drive traffic to your site. If the comment is dofollow, then it will fetch u a good backlink..
There is a video of Matt Cutts commenting about Blog Comments. Well you can just watch the video here: http://www.youtube.com/watch?v=NQfOhncTXRU I also think that his explanation can also answer your question in some ways.