Also, the SearchKit technology is not applied consistently. "API Search" behaves differently than "Full-Text Search" -- a fact I think, first of all, should be made clearer, because the strong natural assumption is that they work the same. From what I can tell, API Search only uses prefix searching (not general wildcards), and only a single search term. So there is no way to discover, for example, APIs related to HTML -- something that gets asked about on this list from time to time.
To clarify, I would like to type "HTML" in the API Search field and have the results include -initWithHTML:baseURL:documentAttributes:.