They banned someone for a few weeks who’d comment Dub time on dubs after some weirdos got irrationally angry about it and mass reported her. There’d also be a meaningful comment on the actual episode from the same user, but it wouldn’t be upvoted as much, so wouldn’t be displayed as prominently. Before the ban and after it was reversed, there’d typically be an argument in the replies to the Dub time comment between people angrily ranting about it and other people defending it.
So there clearly was some moderation, but beyond an automated bad word filter, and I guess something blocking URLs, it was done sparingly and reluctantly.
If anyone’s in this thread because they’re looking for a new mail client after Microsoft killed the old Mail app, and haven’t been happy with the typical suggestions of using each email service’s web interface or Thunderbird, I found I don’t hate Mailspring (with the fancy features disabled - I just want my email client to do email well and don’t want extras that provide clutter).