For much of my career, I've run SQL Server Central. A large part of the popularity of the site is from the forums, where people can pose questions about their struggles with SQL Server and get answers from the community. There are also some off-topic forums, where people discuss various things outside of databases. In here, we have discussions a about life, sports, and more. While we do expect people to maintain an air of professionalism and respect others, we don't try to moderate content.
That's how much of the Internet has worked, with various sites allowing users to post content, but not having any responsibility for what has been posted. The liability for that lies with the person doing the posting, which creates a thorny issue when users post anonymously. Setting that aside, I've been a proponent of this, not believing that Facebook or LinkedIn, or SQL Server Central ought to be liable for what users write and post. I do thinks users bear that responsibility.
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