So I checked the spam filter for yesterday, and saw 35 comments locked away in there.
5 of them were actual spam.
This filter doesn't let anything actual-spammy through, but it seems to block a ton of legit comments. Even "wingboner" got filtered...what the hell?
Anyway everything has been restored. I posted about this on the blogger forum, and was told you have to "teach" your spam filter. So if you do end up getting filtered, don't worry about the double post when I restore it...it's "learning".