npub1q5l4y898qvhzghc665jrqj6kcw4p89gha56azkt7j0jm9299wzcqt7ywp3 (npub1q5l…ywp3)
I assume it's an abuse combating measure. If you want to preserve anonymity at the cost of bad actors, there's always Session.
npub1suam9f3gwqeqxstd3rlccpekpfuxrgawc8est0jtkhpzm63zz5nqxtszrk (npub1sua…szrk)