Getting chat room users' IP addresses?

1. I know it is possible to get the users' IP addresses in a chat room BUT is it possible to do it to all users in one chat room? or are there any programs some might be using to prevent hackers from doing this? 2. Once you get a person's IP address (in a chat room), what info does that give you? Can you tell a person's (exact) location from the IP address? and what else? P.S. I am talking about ANY chat room, not just yahoo rooms. ANY, just ANY chatroom.....
Answer:

1- To prevent from having your IP adress ''stolen'', simply go behind a proxy before going on the chatroom. For example, https://www.nobodycanstop.us/ hides your IP adress with a subnet mask. (There are tons of proxies on the internet, like https://www.flyproxy.com. 2-Yea the hacker can know where you live. Not necessarily your street, nmber of your house etc. but they can know in which country you live. That's pretty limited to that but there are hundreds of hacker tools that can even give more info. Just use a proxy and you will be fine ;-)

Ontario'... at Yahoo! Answers Visit the source

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