@alice
Agreed on all points except one: If you're providing incorrect data to poison the data broker's systems, please don't just type in a "random" email address unless you're confident that it's not someone's real email address.

On any given day, I receive about a dozen emails from various websites where an email address was required for registration, and someone typed in my email address while providing their "fake" info. Pizza order receipts, airline flight confirmations, golf tee time registrations, etc.

The worst part is that these are misdirected, but otherwise legitimate emails, so I can't just mark them as spam, because that will poison the spam detection algorithm's dataset.

So yeah, if you're gonna type in a fake email address, please make sure that it doesn't belong to someone first, and the easiest way to do that is to use a nonexistent domain, preferably one that no one would ever register, like "${random_guid}.com"