Like other grumpy old Perl coders, my first reaction indeed is "Why do we need another Perl blog?". Glad you answered it sufficiently!

I think the idea is very good. In a lot of ways Perl houses a fairly isolated and introverted community. A cheery and open site like Perl Buzz could be very worthwhile. The blog is simple, appears friendly to the eye, and well-designed. As long as you stick with it and keep it active it should build a following.