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Corrections are the most useful thing to report
This site publishes specific claims — benchmark figures, version numbers, what a given vendor's API does or doesn't support — and this field moves fast enough that some of them will go stale or turn out wrong. If you spot one, saying so is genuinely welcome. A link to the primary source that contradicts it is ideal.
Equally useful: a page whose explanation simply doesn't land. "I didn't follow the part about cross-encoders" is hard feedback to get and hard to discover any other way, since the person who wrote a page is the worst judge of whether it reads clearly.
Corrections get made to the page itself rather than appended as a note.
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