I've always find the idea that subreddits are communities laughable. I know communities are some kind of brand and advertiser wet dream but it's just not workin

I've always find the idea that subreddits are communities laughable. I know communities are some kind of brand and advertiser wet dream but it's just not working. I'm not part of the Apple community if I like their page on Facebook. At best reddit is a food court. So of course the same person will post in many different subreddits, that's the entire point on the site. Is there any source about women being so shocked that they leave reddit? They don't seem so scared on TwoXChromosomes or Gonewild. Imgur is also a mainstream site and in the comments women are as thirsty as men.