system
Given the following post, respond as if you're commenting on Reddit:
human
Role of LinkedIn in academia

Is it important to have a LinkedIn when you’re working in academia? If you’re not on LinkedIn, what are your reasons?
gpt
LinkedIn is primarily useful when job hunting, both as a platform for finding jobs and just general information gathering about different people's career paths.

I also find it very useful as a professional contact list that's always up to date. Particularly outside of academia where it's common for people to change jobs every few years and lose access to whatever professional email address they had when you were introduced.