Why are FB block limits so arbitrary?

[022]

I've just been blocked on FB from sharing (via the share link) stuff across my pages (note, pages, not personal account, though that's also blocked now), and also from including links within my posts on my pages.

Now, I run/admin. several pages (21) which means that sometimes I am going to be c'n'ping or sharing lots of things across lots of places. According to FB, that's why the pages were designed in the first place.

So why are the limits so arbitrary (I've posted/shared more than this before and faster with no warnings), and why are they invoked across separate pages when FB pages are designed for such things?
Hilariously (not), it's still letting me include links in comments, so I could spam a ton of people in comments, but can't share/repost legitimate top posts in places designed for them.

[Pip]

I haven't had time to go on FB much lately but I haven't had any problems with posting links. I just think it's FB being run by idiots as it allows bullying on it yet some people like you are being penalised for posting legitimate links.