First, the personal attacks and insults in the post bar have constituted reputational infringement. If the landlord is troubled or suffers economic losses, he can take a civil lawsuit and ask the abuser to apologize and pay compensation and spiritual comfort.
Second, the landlord can print a post in the post bar and then go to your local network police and network supervision center for help. Check the IP, and then go to the notary office for notarization (around 50 yuan). This is evidence.
3. If it has constituted the crime of insult in criminal law (depending on the circumstances), after collecting the evidence, the landlord can go to the court to prosecute himself and pursue his criminal responsibility.
If you have any questions about the above opinions, please ask them. If not, I think it is reasonable and legal, and I hope to adopt it as a thank you!