Two new updates:
First, it now tracks your usage in a way that's easier for me to analyze.
I believe this is going by UTC, and I launched it late on April 30, so basically trust anything starting today. Ideally you want this number to be as small as possible. A lot of people have told me they often search X, then search Y, then search X again because they forgot the results. Please keep the tab open, take a screenshot, or use the "copy" feature. The more searches you do, the more it "costs" me (not that's it's significant at all), and the more likely AC is to get annoyed.
I'm definitely not suggesting you stop searching things you care about, but please just keep a record so you're not searching the same thing 10 times in a 30 minute period.
Second, I just deployed a performance improvement. It isn't significant, but it will make things a bit faster, especially when you're searching wide date ranges.