[RansomOttawa]

In addition, in an apparent attempt to weed out Christian moles who might disrupt the presentation of the statue, the Satanic Temple required everyone who had a ticket (for which they paid $25 and up) to sign a quasi-legal document in which they agreed to “transfer” their soul to Satan.​

I don't see how this could be even slightly enforceable legally ("quasi" or otherwise).

Hypothetically, if my intent was to serve public interest by bringing a newsworthy event to light, of course I'd sign it. Though I'd probably use a fake name.

[IYAS9YAS]

Though I'd probably use a fake name.

They thought of that, and put language in the contract that simply by your signing of the document, whether real or fake name, was binding.

Like I said, if you'd already bought a ticket, and if that ticket didn't disclose the necessity of signing a contract even after buying the ticket, then they are guilty of bait and switch, and can be sued for it.