Of course you aren't too late. Welcome! I of course have to encourage you to comment more, because it means so much to the authors and artists. But beyond that I hope to find you joining in around the various communities, we are always looking for new fans to join the fun. And you should still feel free to read through and comment on all the previous comments to this post, most of us will be coming back to check this post for some time.
Have you seen the whole series by now? You mention watching the odd episode but didn't say if you ever finally watched the whole thing. If you haven't I gotta encourage you to do so. It's so good. If you don't want to invest in the series you can netflix it or find it online probably. And if you get caught up to us you can join me over at qaf_marathons where we are currently on episode 312. We watch about one a week, sometimes i have to skip a week though, cause of RL. I try to post a few days in advance a notice of when we will be watching the next episode. It's a great way to have some people to watch along with instead of watching on your own.
Either way, I'm adding you as a friend if you shall like to add me back. Hope to see you around :D