I would call that /a/ typical poster.
As opposed to Typical /a/ girl poster.
Because it ever so slightly could be mistaken that there could be females that are part of /a/ or somehow accepted.
Even if the above were to occur, say for example, [Anon] was actually female, I'd hope theyd stay anonymous, and sure as hell they wouldnt bring up d.art shittery.
Plus we would(and should) never know.