Earlier quoted context omitted.
This is pretty much true of any online community built around the opposition to something. People that had a positive or simply ‘meh’ experience don’t tend to spend time talking about it online.
The r/exmormon subreddit has 155,000 members. The r/exchristian subreddit has 60,000 members. When you compare as a percentage of global population of members of their respective religions, it looks even larger. You're right that people who have had "meh" experiences don't tend to talk about it online. What is it about being mormon that makes exmormons so bitter, in comparison to more benign religions? Try reading th…
It may simply be the case that Mormons are more tech-savvy as a group than Christians as a whole and thus they gravitate to online communities.