Anyways, some good news for you. :)

I've made some progress on enabling the shortcode automatically when publishing or updating to the Steem blockchain.

Here's my current tests:
Attempt #1:
https://steemit.com/wordpress/@recrypto/testing-a-new-feature-that-renders-wordpress-shortcodes-for-wordpress-post-to-steem-post

Attempt #2:
https://steemit.com/wordpress/@recrypto/testing-a-new-feature-that-renders-wordpress-shortcodes-for-wordpress-post-to-steem-post-attempt-2