> LinkedIn is the only social media that has had a positive impact on my career.
It looks as if the site is beneficial when used strictly for professional contact(s), it's working as expected most of the time. The marketing side, which is part of its business model, is annoying. Groups used to provide valuable and interesting information in some professional fields. Now, not so much. When everyone tries to push their agenda all of the time, it is just noise. Despite this, some people are still surprisingly listening and engaging, so it still works from a marketing standpoint.
> I never scroll through the news feed.
That's the way to use it.