The number of attested persons per community is public information: See our explorer. Click on one of the communities and check the “number of reputables” number. However, we need to talk about how this number comes to be: It is the number of accounts who have been attested at at least one of the last 5 cycles. This number won’t be safe to use for distribution of DASH: A single attendance should only qualify for a single payout, otherwise you can sybil-attack with 1+4 sybils (the attacker could attend 5 times in a row, but with different accounts). The way we propose to do it is by tracking which proof of attendance has been used already to claim DASH. And that’s how our personhood oracle works. Morever, this oracle improves privacy as there is no linkability between the encointer account with reputation and the dash account receiving the dividend. Users enjoy k-anonymity with k being the number of beneficiaries per payout run (with the same reputation rating, to be precise).
Therefore, I think we should not just sign dash accounts with the encointer account. IMO, the oracle mentioned is a superior solution because of privacy and it also solves tracking of “burned” reputation, thereby improving sybil-resilience