For a while I found the multitude of key chain extensions annoying. Then I found WhaleVault which can handle 15 different Steem like chains including hive.

I don't understand why every Steem like chain insists on creating their own keychain extension. For me this sounds like a pure vanity project as a universal keychain solution exists. It would be much more efficient to join the WhaleVault effort instead of wasting developer time on creating yet-another-keychain-extension without added value to the end user.

Quite the opposite: If you have accounts at multiple chains having to install a keychain-extension for all of them is just annoying.