The website administrator has a lot of information about you such as the computer system you are using, the city you are online from, the web browser you are using, the operating system you are using, and the resolution of your screen. In some instances, the website administrator can figure out the exact name of the business you are logging in from. For example, if you are working at Goldman Sachs then on their screen it would show that you are logging in from there. They also have the exact time/dates and also may implant a cookie on your computer which gathers other information.
While all this information does not identify you exactly, it can be combined with other information to reasonably identify you. For example, they know you live in Springfield, Michigan, use a PC with Windows XP and a high resolution screen and its coming from ABC Inc. That should be enough information to take a reasonable guess as to who is posting. Someone like Baron could easily use that information to contact your company and make a complaint.
In order to exactly identify you, then that would require a court order of some type. Keep in mind though that a company doesnt need a court order to conduct surveillance on their own property and you dont have a reasonable expectation at work. Lets say Baron wants to give you some trouble or there is an uptight mod on here that is a crazy and they decide to call ABC Inc giving them all the information above. A company can fire you for any or no reason at all.
Also keep in mind that in your 1000s of posts there might be other information you have provided to further identify you such as writing style or statements about your personal situation.
I have used in the past commercial proxy services when posting on message boards like this, but have since utilized The Onion Router which is free, but a little slow. All of these services are very good and the website operator does not have access to the usual information.
I am not going to let any website operator have any of my information. I know the mods on this website have abused their authority in the past by revealing a person's location in the forums. They have also shared ip information with non-moderators who they be-friended through this board. I also know they have edited (added and deleted) to posts. One of the reasons why Ivanovich was given the boot was because he would reveal a poster's locations in order to intimidate. He would also share information about certain posters with other non-moderators and edit posts without anyone's permission or knowledge. So there is abuse on here of your personal and private information.
Quote from gotta_trade:
Hi,
If someone makes a post on a forum, is it possible to identify who they are where they live, (by their IP address or any other means)?
Or is it basically 100% confidential?
Thanks,
gotta_trade