Defamation is against the terms and conditions of this forum nevermind anything else. As is content which promotes hatred towards individuals, being abusive, threatening and much more.
For all the complaints I've read about moderators allegedly being too strict. I actually think they're probably being too lenient when it comes to applying the rules.
"You agree to not use the Service to submit or link to any Content which is defamatory, abusive, hateful, threatening, spam or spam-like, likely to offend, contains adult or objectionable content, contains personal information of others, risks copyright infringement, encourages unlawful activity, or otherwise violates any laws."
"The following is prohibited across the entire website. Please do not post it. If you see it please report it.
- Advocacy and hate speech: Posts that promote hatred towards a particular group (including content that incites hatred or promotes violence against individuals or groups based on race or ethnic origin, religion, disability, gender, age, veteran status or sexual orientation/gender identity), harassment, bullying or similar content that advocates harm against an individual or group.
"