They could just be wanting to let people know so that if any want to keep in touch, they can email that person to get information on how to contact them.
Some are seeking attention too though, or just venting. But I think it's wrong to just assume that every person who posts an "I'm leaving" thread is looking for attention/pity or what have you.
RE: Randomly Post Anything That's On Your Mind.....
It's only 9:30 am here...