LJ has fixed at least part of the latest annoyance

They will be removing the misfeature that allowed cross-posting of comments to locked posts.

If you're concerned about this for your own privacy, note that this is a planned future/next release thing, so it may take a fortnight. They are not simply rolling back the release that had this problem.

So, credit where it's due, but once again, the problematic thing was dropped in with no warning, and the fix is still in the future tense.