I tend to be more lenient of malice than incompetence. If your goals don’t align with mine, fine, maybe we can still work something out. But if you are in the data-handling business (Facebook, Google etc. are) and you fail to handle data properly, you should rather die today than tomorrow.

Yep. My guess is that when you deactivate, FB marks your posts as deleted to remove them from view, then when you reactivate, it unmarks them, but doesn't make a distinction between whether the user manually deleted them, or whether it was automatically done as part of the deactivation process.

To users, there is no distinction.