- They don't start flame wars.
- They may not comment, but they can be a terrific source of traffic.
- They pay it forward by linking, emailing, tweeting, FBing, etc. your stuff.
- They are usually your truly devoted readers.
- When they DO comment, it tends to be pretty smart & thoughtful, because they're not just doing it to hear themselves talk.
What do you love about your lurkers?