It is not actually logical for women to hide their gender while using cryptocurrencies, but that can actually be true. Though we all know that the quantity of men is way more than the quantity of women in this industry, but on the other side, we should know that no place can be without women and there would surely be some women around everything in the world. So there are women in bitcoin users base as well as in this forum. Maybe some of them hide themselves while just a few openly accept their existence.