I tried a post and got the following message:

“This message contains blocked content that has previously been flagged as abusive or spammy. Let us know if you think this is an error.”

Here’s the abusive content I was trying to post:

We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America.