Let's add such a rule! If someone doesn't confirm a report without a technical reason, they should be banned, at least until the end of the season. And I would also like everyone who hasn't confirmed their reports previously to explain why they didn't do so. Because, in my opinion, this is a real disrespect to the opponent. As for two unconfirmed reports, it depends on what kind: one is enough without an explanation, but even ten are acceptable with an explanation and proof.