In retrospect, without rct, how much anonymity did monero have?

Anonymity isn’t some one-dimensional metric...

UkoeHB: Fair. Let me rephrase. In retrospect, without rct, was there a minimum ring size (other than 1) below which no anonymity was provided beyond what BTC has?

Even 2-member rings are better than BTC... all it takes is 1 single ambiguous tx to win against BTC.

<UkoeHB> "Even 2-member rings are better..." <- Just wondering if in the inter intervening years, if any proofs had arisen showing that a small enough ring provided no practical benefit against advanced analysis.