Here two examples of id-less posters in a board with ids enabled
>>>/dump/1085
>>>/dump/1086

to be more specific, every post, when looked at in the moderation mode, has an hash of the ip address
the id-less posts lack any hashed ip, they are basically ip-less, so it's impossible to ban them

this isn't the first time i've seen these odd information-lacking posts on boards, they stand out pretty much usually, but i can't find more examples at the moment

is this an expected behaviour for the site? or what could be causing this occurrence?