“Literally nothing” is false:

> In nearly every instance it can be replaced with “good” or just dropped altogether with no loss of information,

That is obviously true and easily checkable. If that is not true, explain how in rational terms.

> Multigenerational LRU: better, more versatile, more straightforward than Linux's

> Multigenerational LRU: more versatile, straightforward than Linux's

Neither of these have as much information as the original headline. The version I came up with that's actually equivalent to the original without using the word "performant" has to use a word that means the same thing.

> Multigenerational LRU: faster, more versatile, more straightforward than Linux's

And that still means I don't get to use the "parallel more" construct.