I heard back from a human being! I just wish it were useful. From the response below it seems that posting any number of things with any level of frequency might trigger a block. So, basically use Facebook at your own risk. The random banning will likely continue just so you know Facebook cares.
Tom,
Facebook has these limits in place in order to prevent behavior that others may find annoying or abusive. We apologize for any inconvenience this may cause.
Keep in mind that warnings and blocks are sent out based on a number of different factors, such as speed, time, and quantity. For this reason, we ask that you monitor the nature and rate at which you use site features, rather than attempting to abide by any numerical limits.
Unfortunately, we are unable to provide additional information about this system. When you are allowed to resume using this feature, we recommend that you proceed with caution to avoid reaching the limit again.
Thanks for your understanding,
REMOVED [No reason to malign a hapless pawn in this game -Ed.]
User Operations
P.S. as of 6/29 I’ve still got the ban on my account as a result of using their site. So if I don’t reply to one of your comments with a method other than a private message, I apologize. it’s what I have to work with.

