From the conclusion to my second email (linked above; emphasis added):

Now. I could keep this up for the indefinite future, posting statistics about how other sites are literally 1000x more active than SL4 is. But if all the points I have presented are insufficient, then it's hard to see why simply repeating them with slight variations as the statistics change would make them sufficient. I'm done; my case has been presented. I'll stick around for a month for whatever is left to discuss, and then unsubscribe - voting with my feet, as it were.

Usually you're better than this.

EDIT: And as promised, I've unsubscribed. There were no worthwhile emails after my last email, either. Just spam of varying degrees of spamness.