Here is the reason why Facebook blocked blog post or bloggers. I have come across this query or question before writing this blog post multiple times.
Before that, I have a vague memory of why it became difficult to share posts/articles/videos, etc. now unless you are a known brand/person.
It was the time when ads feature was first introduced by Facebook where you can run a sponsored or promotion for your content such as blog posts, articles, videos, etc.
At that time there were a lot of fake contents promoted and share which is why Facebook received backlash from Governments
The was the main reason behind this is to stop curb fake news or content. where it became difficult to share your contents on the platform
Here is the solution or answer to your question or query
This can be applied to Whatsapp and Instagram because it is owned by Facebook
HOW CAN I SHARE MY BLOG POST ON FACEBOOK
It is applicable to all bloggers whether you use WordPress, Blogger etc.
There are a few more Pages I would recommend you to add to your website/blog such as Disclaimer, Terms & Conditions, About and Contact form is optional which will depend on your business type
As for the About us page, you can use this service volusion to generate one for your website/blog for free. If possible I would recommend you to create/make it for yourself
A few basics information will be required like a website name, Domain name or URL and E-mail which will be incorporated
This will make your website/blog ready and prepared for monetization as well
From my own personal experience, it works like a charm