I read Rikafip's quoted comment since he published it first time. And, at first sight, I tended to agree that Lauda could have been male. Then I thought again. Could have Lauda done such a mistake? Could Lauda try to avoid exposing their gender by all means and forget what they were doing inside Croatian board?
By knowing Lauda and the way they acted here all the time regarding privacy, I came to the conclusion that it's possible that what Lauda did in Croatian board was yet another step to mislead people about their gender, in order to better protect their privacy (and, if it is so, then it's a brilliant idea!). Somehow (although Lauda never admitted that), in international boards, some perceived Lauda as female. Then "she" wrote, on purpose, as male in Croatian board. Why? One reason could be exactly this: to have people even more confused about Lauda's gender and trigger even more question marks.
From what I can tell, Lauda cared more about her privacy as she became more well-known. I think part of this was due to her being disliked by so many people because she called them out as scammers, and she did not want to be harassed IRL.
I have the impression that Lauda did not care as much about her privacy in her early days on the forum.