There’s been a movement on the web for a while now that’s called the “You comment – I follow“. They want you to remove the nofollow tag off of your comments to “reward” your visitors. Now we do agree, but… That get’s you a whole lot of spam once your WordPress blog turns into a well ranked blog… What we do advocate though, is that youactually follow your visitors! Go to their websites, and leave a comment on one of their articles, a good, insightful comment, so they respect you even more.
If you think that’s a lot of work, do realize that, on average, about 1% of your visitors will actually leave a comment. That’s a group of people you have to take care of!