WhaleVault required several updates to accommodate recent changes to the Blurt chain, so it's likely you were having problems with an older version before receiving an auto-update.

As for PeakD, it seems PeakD was using several higher level Keychain methods that most sites don't generally use, since those same operations can be performed with lower level functions.

The latest update of WhaleVault adds support for those additional methods required by PeakD (requestVote, requestPost), so you should now be able to vote and post directly from PeakD via WhaleVault as well!