We've been thinking about other ways to do it (e.g. restricting via bloom filter), but ultimately, there's so much content on Omniref that we're going to match

We've been thinking about other ways to do it (e.g. restricting via bloom filter), but ultimately, there's so much content on Omniref that we're going to match most queries for something. It's disabled for incognito mode, and the query data is used only to hit our search index. If this is still an issue for you, we can put a setting in to allow disabling of this feature for privacy.