Tip ! Tip ! Tip !
If nobody likes your stuff on Facebook maybe it’s because they don’t like it, not because they don’t see it. Change your content or change your audience. You can always delete anyone that never interacts with you or is not actively using Facebook. Make room for new friends. This will also increase your edgerank and your overall engagement.
Btw, if you want more likes and comments, give out more likes and comments. Don’t be selfish. 😉