The parent is clearly bemoaning the lack of apparent creativity that comes from a FOSS golden child.
Yes, implement generic features like vertical tabs (but who wouldn't implement them at this point without nesting?), but some creative experiments in UI/UX that seek to improve the browsing experience might also be possible?
What a weird flex. I think if you make >700 million dollars a year you should have someone driving instead of feature farming the comments section.