You might be interested in this plugin: https://github.com/brettp/stale_users

It doesn't however fix the problem with the messages plugin.

Yea, historically we've just encouraged people to stick to the Elgg community site and eat our own dogfood. The community hasn't ever really adopted fragmenting to sites like Stack Overflow, Reddit, G+, Facebook, etc.

Twitter seems to be the one place where there's a non-negligible amount of Elgg traffic/discussion/announcement.

But thanks for wanting to spread the word! We do have to figure out a better publicity strategy :)

I don't know if Reddit would be useful. I think we should keep support here.