It seems fairly consistently miserable in any of the common high traffic subs and you have to get down to really niche communities to see what I consider reasonable behavior that matches the behavior of people I know in real life.
There's plenty of those I've read where I thought it sounded like the poster was the asshole and the top replies were NTA.
e.g. If the OP is asking "I ghosted my friend in AA who insulted me during a relapse", Reddit would say NTA in a heartbeat, while the real world would tell OP to be more forgiving.
On the contrary, if the post was "the other kids at school refuse to play with my child", Reddit would say YTA because the child must've done something to incite being cut off.
Granted many of the OPs are very biased in the poster's favor. Most I've read fall into one of two buckets: either they want to gripe about some obviously bad behavior, or it's a controved and likely fake story.
Many of the posts are A/B tests of a prior post where only the genders were flipped of the OP and antagonist to see how the consensus also flips