Reddit used to really drive me nuts, in the work-related subreddits, where everyone used to say, “Your co-workers are not your friends.”
Reddit is full of the asocial “leave me alone” types (or at least used to be) that make every excuse to not to socialize with others. Taking their advice to heart is an easy way to become a miserable person. There’s lots of nuance between “set up barriers in front of everyone” and “share every detail” and they seem to lack that.
There can be entire communities that know of no one that voted for the opposite candidate. That’s what helped feed the “stolen 2020 election” narrative. Some truly think that Trump should have won in a landslide because “No one I know likes Biden, how could he have won?”.