Now a days LinkedIn playing a great roll to make your business successful. But it depends on how you are using it. If you able to use it properly it could be a good medium to reach your targeted audience.
But what I have seen so far there are lot of people who don't have time to do these type stuff personally. So they need some help to do these type stuff for them.
I am one who provide services related LinkedIn. If you have issue you can ask me anything related LinkedIn. Check out my professional network or gigs to discuss.
Here my upwork profile URL: https://www.upwork.com/freelancers/~014d04c551cf96688f
My Fiverr gig about Link: https://www.fiverr.com/hexdesk/be-your-professional-linkedin-assistant