It's not really that finicky.

If it's the matter of exact spacing, you can just enshroud the text you change with {color=ffffff}{/color} to ensure that you only change the correct text since the spaces are consistent in their logic (one at the end of leftmost section, two surrounding middle section, and one at the beginning of the final section).

xampl:
[code][center][h3][b]Name Nameman[/b][/h3]
[sup]Interacting with: 
[h3][color=a9a9a9][color=ffffff]Place[/color] || [color=ffffff]Action[/color] || [color=ffffff]Vibe[/color][/color][/h3][/sup][/center][/code]

[hider=Thing][center][h3][b]Name Nameman[/b][/h3]
[sup]Interacting with: 
[h3][color=a9a9a9][color=ffffff]Place[/color] || [color=ffffff]Action[/color] || [color=ffffff]Vibe[/color][/color][/h3][/sup][/center][/hider]

Screenspace for aesthetic is a sacrifice of having it on one line; it shouldn't really be an issue unless you keep the qualifiers and decide to have a very long description of all of them.

If it's the matter of being unbalanced if you have a large section, then yea. You could also begin to use tables to solve that, but that begins the devil's work of being weird as hell. That's just a limitation to try to keep them sufficiently equal.

Though it doesn't really matter. Mae did say that as long as it had the same information, it didn't really matter how the header looked.