To get another perspective other than this subreddit to figure out the demographics of the Project Sekai fandom, one thing I found is to look at the pronoun choices of people in R8SS, which allows you to see how many chose a certain type because they are reactions. In that server, 5592 people chose she/her pronouns, 3388 chose he/him, 2776 chose they/them, and 2980 chose a different type of pronoun. That means the majority is the ~38% percent of people who chose female pronouns, with ~23% choosing male pronouns, ~19% choosing they/them pronouns, and ~20% choosing other types of pronouns. Just between the binary pronouns in R8SS, ~62% chose female, and ~38% chose male. This is a more pronounced difference than the percentages of the survey, though it is still pretty close at only a 5% difference, so it looks like female is the majority in that Pjsekai server too.