This is something I've seen people mention a lot here but I've never really completely understood what it means. Like, it seems to mean someone who just reads the OP and then makes one post and leaves, but I don't really see how that's any different from typical forum behavior. I mean, this site is set up to respond to have topics that you respond to. On other forums the majority of posts that I've seen would probably be categorized as "drive bys". Is it expected that in larger topics with a community of people, you make an introductory post or consistently contribute to the topic or something? Are "drive-by," posts necessarily bad? Am I getting the definition entirely wrong?