Well for one thing you joined a gaming blog to promote your gaming addiction blog. They might be angry because of that, haha.
It's like promoting a smoking addiction blog on a cigar fanatics forum. You're trying to promote with a crowd that will never like you.
And honestly gamers are notorious for being one of the worst people to deal with. I've been playing online games since I was 10, and it's not uncommon for people to cuss each other out and send each other death threats just because they lost a gaming match.
You could try joining an existing gaming addiction forum, or a general addiction forum to promote your website. I think you'll get better (and more accurate) feedback.