The response to that should be to restrict the events calendar and similar dynamic functionality, not to restrict the 99% of users who are accessing what should be 100% staticly cached HTML.

Good idea; I'll make sure we have all random ?date=1970-01-01, ?date=1970-01-02, all the way to ?date=2026-07-22 URLs cached, even the ones that are 404s but the crawlers still try anyways. Thank you!