I routinely put <whatever I feel like that day>@example.com email addresses in for sites that are braindead when it comes to data requirements. Hell, I've even

I routinely put <whatever I feel like that day>@example.com email addresses in for sites that are braindead when it comes to data requirements. Hell, I've even given human beings <my name>@example.com in conversation when they demanded an email address. And they accepted it.