This is a funny word. I use it often and I'm finding "extra" difficult to explain.
My best take is that you take the general expectation or main thing about a situation -- Then when something is "extra," the magnitude of the expectation or thing is large. But usually there's an unusual spin involved too, only very slightly.
Example: My fiancee's makeup is extra. Makeup is typically accenting beauty and lightly applied, so when it's extra, it's overwhelmingly pretty and heavily applied.
In this context, Hacker News is known for mostly serious discussion and polite chains of building thoughts. The users are extra today by being dramatically serious and having impolite chains of volatile thoughts, or maybe even chains of echochambering.
That is pretty tough to wrap one's head around. I guess it requires reading into the subject from context and estimating the most likely characteristic being magnified.
Good find! "Logically" they're pretty close, "emotionally" they can be different.
If her makeup is "over the top" that's a bad thing, she's not dressed appropriately. If her makeup is "extra" it's meant to be encouraging -- it's "over the top" but the "inappropriate" change is welcomed.
"Extra" is sometimes used with that sarcastic element or downward twist (seen by OP) that chips away the welcoming bit. In that context, I think the usage is similar to "over the top".
My best take is that you take the general expectation or main thing about a situation -- Then when something is "extra," the magnitude of the expectation or thing is large. But usually there's an unusual spin involved too, only very slightly.
Example: My fiancee's makeup is extra. Makeup is typically accenting beauty and lightly applied, so when it's extra, it's overwhelmingly pretty and heavily applied.
In this context, Hacker News is known for mostly serious discussion and polite chains of building thoughts. The users are extra today by being dramatically serious and having impolite chains of volatile thoughts, or maybe even chains of echochambering.