I saw this as a request ages back but I don't think it appeared... or if it did, I'm missing something.
I have my options set to Delete after 90 days (which the plugin changed to 12 weeks and 6 days... smooth!). I left all the other changes alone, since I'm deleting and they're irrelevant.
But when I create new posts, they aren't set to expire, so the default isn't defaulting.
I tried it on a separate install, in case the other plugins were weirding things out, but that one defaulted to "Disable"... which kinda defeats the point of setting a default.
Am I missing something? Is there a way to set the default to "Enable", with a default number of days?