Anyways, he claims this is very useful and a complete whitehat tactic. Then a friend told me this is blackhat, because I'm not making clear that the web 2.0 blogs are mine.
I want to stay completely on the whitehat side with my blog, because I have a lot of value to offer and it's very important not to get penalyzed because of stupid mistakes.
So my two questions:
1. Is this tactic blackhat or whitehat? How big is the risk I will get a penalty?
2. Is this even a useful tactic or is this completely outdated? How much will it help my SEO?
I'm thankful for any input!