No more content shortcodes. No more — or at least not many — exotic content formats. Embedded video or tweet? Copy and paste the embed code from the host site. Need some fancy HTML for notes? Use raw HTML.
I need a base blog, with minimal dependencies on Hugo or any other SSG, so I can get serious with some of those others. "I'd need to port all my shortcodes" has blocked me from switching for the last year and a half (you accumulate a lot of cruft using the same site builder for six years). Now it won't be such a blocker.