This is something I've thought about a while back. Like Facebook probably has a "maximum number of ads shown to users per post" value. So theoretically, they ha

This is something I've thought about a while back. Like Facebook probably has a "maximum number of ads shown to users per post" value. So theoretically, they have a ceiling for how many ads can be bought in a specific time frame before having to increase the ceiling/find new users. Do they share data about this?