@jean That's one of the reasons why I thought a new filter would help. Of course not every new person will necessarily create an introductory post but I still think it's a good way to merge the curated welcome -- through which people could even be encouraged to make an introductory post; there's the Welcome page, your welcome reply, email, maybe even more -- with the discovery feature we do have.

I'm curious, if you can say, do the spammers use "hello world" or any other such traditional intro posts from non-spammers?