Yes, I've had Page content removed before. Sometimes it was silent and no strikes were given, just "hey, where did my post go?". Last time a post was removed, my admin poster account was banned (thank god we have backup admins), and we had a notice that we weren't showing up in people's news feeds for several days. The warning on the Page has gone away, but organic reach has remained stunted since then compared to before.
Most shocking to me was my FB account being completely wiped out with not even so much as a time out. Others in my niche have gotten hit but EVERYONE else was some form of time out where their account was up but they couldn't log in. Mine? Just banned, everything gone.