Since we already have a badge for people who have an account on SO for a year and have some reputation, why not reward those people who come to the site regularly and contribute to it?
- Badge Name: "Habitue" (aka "regular visitor")
- Badge Value: Silver
- Requirements: Visited the site for at least 365 days, posted 5 questions, 5 answers and 5 comments.
The exact numbers are subject to discussion of course. It might be a good idea to require that the Q/A have positive scores (and in the case of questions: not closed as duplicate, subjective etc.) in order to encourage "good" usage of the site, not evil/spam.
Tell me what you think.
EDIT: okay so i thought about it a bit more. Lets change it to something like this:
- Posted a question or answer each month for twelve consecutive months with a score of at least 5. (again, values subject to discussion)