There has been a raise in companies filing defamation lawsuit against anonymous poster, posting negative comments about their company. The process is fairly simple. The company files a defamation claim against a “John Doe”. The complaint enables the company to issue subpoena against websites where the comments were posted asking for information concerning the identity of the poster. The information will come in the form of server logs, user account information and ip addresses.
These days, one’s ip address is the equivalent of one’s home address or finger print. As each home is appointed to a unique ip address. Once they have your ip address, they can subpoena your Internet Provider for the account associated to your ip address.
With this information, they can now connect you to the comments being made on the Internet. They then amend their complaint to add you as a Doe. Serve you and the lawsuit begins.