After 7 months, the Deviant Art staff finally fixed the blog! :D Additionally, all Favorites are back, and the comments for deviations are back, though I don't know when those were fixed. (Hopefully the blog comments will reappear eventually, if they still exist in the system.)
Fixed blog means you can see all posts again, right when you click on "Journal". Since the posts are finally editable, I was able to manually move them back into "Featured", where they're visible to viewers right away.
To be honest, I'm grateful Deviant Art actually fixed these things, considering they were rare bugs that only affected users with deleted>>reactivated