By now, most bloggers have heard the announcement that the Big 3 search engines - Google, Yahoo, and MSN - have united in support of a new tag that will supposedly combat comment spam. The new tag is a nofollow attribute that can be added to links. When added to links in comment tags, the search engines will ignore them.
At first blush, anything that can help cut down the comment spam that most bloggers are daily subjected to would seem to be a good thing. It can be pretty upsetting to access your blog in the morning and find 50 junk comments with links to casino, adult, and pharmacy sites. If your blog has any PageRank, you can expect to find more of this garbage polluting your site every day. Fighting the spread of comment spam has become a necessity.
I have to agree with these bloggers that the nofollow tag won't even put a dent in the problem of comment spam. You have to realize that the comment spammers who cause the most problems are the ones who use automated bots to spread their spam onto every blog they find. The fact that they find a blog using the nofollow tag won't stop the bot from posting. If you have a popular blog, you'll still wake up every morning to find 50 casino/pharmacy/adult ads on your blog. You'll still have to spend the time deleting those posts to clean up your blog.
