Obvious things that hurt SEO?

[Katrina]

What are some obvious things that hurt SEO that forum owners might not realize?

 

[lucycarter]

low quality content, Not Policing your forum for Bad Actors, Not using appropriate keywords and meta tags - These are things that can really hurt SEO for forum. If you have any more suggestion, then please reply.

 

[meetdilip]

Copy-paste content. Google is very tough on such actions.