90-10-1 rule is pretty much 90% of internet users are silent. All they do consume what others producing. 10% of them either write comments or contribute some ways. Only 1% of the internet is creators. This ratio is similar everywhere. (Check Wikipedia Ex)
You might figure out this either if you have app, restaurant or book. Very few of audiences are going to leave a review.
You can also check on your LinkedIn Post to do this math too. How many of your followers reading your post? How many of them likes ? How many of them leave a comment ?
90% don’t read, 10% read, 1% like, and .1% comment.
So, don’t worry about too much contribution. 90+ % of internet is Lurker anyway.