For my first couple of years of blogging, I was very social, blog hopping from one blog to another.
I did all sorts of stuff just to help increase my blog traffic. I would do all things which I thought could help with the seo (search engine optimization) of my blogs. I have joined forums and communities, in fact.
That time, I was conscious of my page ranks. Oh not really it's more like my top earning through blogging company was conscious of blogs' page ranks.
And so, yes, as part of those bloggers being paid, I did everything I could to have and maintain higher pr. I would get excited when somebody tagged me in their post. It would mean one thing: I was receiving back links!