Do you use LinkedIn?

I feel like it shouldn't be that easy to get that much info on a person just by the click of a button.

*You can see where a person works
*What they do there,
*How long they've worked there.
*Where they went to school,
*Their qualifications.
*People they know and are in contact with.

I feel like in the working world, that type of info can be dangerous.
Not everyone wants the best for you.
Not everyone wants good things to come your way.

I can only imagine some people get passed up for jobs because they are buddies with someone that the hiring person or program manager doesn't like doesn't like etc.

I can also imagine that someone that doesn't like you could start a rumor and send it to your manager or colleagues.

I use LinkedIn to ask questions and get information about other areas of work.
I use it to find out about organizations and things that I wouldn't otherwise know.

I do not keep my work history updated. It's always several years off/old.