I've made over 40 blog entries and I've seen probably 4 responses to them. I don't take it personally that everyone and their kid brother isn't sharing my outrages, etc., because a bLog is an online personal diary more than a discussion forum. If one person gets inspiration or a sense of empowerment by reading one of my entries, then that's what matters - not how many people feel compelled to respond.
If there are issues that you want to address with replies, I would suggest using the discussion forums. Blogging just gets it out of your system.