Speaking as a member of the Pony community, the Pony community has done quite well since Casuality ceased to exist. I addressed this on the Pony mailing list a while back:

https://pony.groups.io/g/user/topic/on_the_state_of_pony/251...

I'd also like to note that the statement that Sylvan is no longer involved in the Pony community in that post is very offbase. He's a founding member of the Pony core team and still actively involved.