[manigandham]

Nobody is "obliged" to use it.

You can also buy ads if you want to show your posts to people, like any other business does.

[disgruntledphd2]

To be fair, the linked article does suggest that this effect occurs for ads as well as organic posts.

[manigandham]

Where's the suggestion that it applies to ads? The only coverage is 2 un-sourced instances of the ad creative review algorithm falsely flagging the content.