“(p.s. i am not literally comparing following professional sports to eating chazir. better sports than chazir.)”
Your analogy is off. If I could not persuade the fellow to stay out of Mcdonalds, I would not, offer him ANOTHER piece of Treif. I would do whatever I could to keep him out of MsDonalds. Once he was in there, I would do what I could to get him out.
Regarding blogging and bittul zman. I would prefer that I did not engage in any bittul zman, BUT if I am going to do it anyway, I would prefer to engage in a discussion about Sports over a discussion about Latkes, Politics and silly news items. You are obviously making the decision that you would prefer to engage in bittul zman discussing other “important topics”.