I can relate to both sides here. Once I had a mistress with an open website where a text field would generate emails. She was complaining that she had to read hundreds of emails, mostly spam, so I generated for her a replacement page, based on a form, where all entries like phone numbers, emails or dates were strictly validated, and in answer to Swordfish existing customers had a different form from new ones.

However, she chose not to use it for reasons similar to what Mistress Ayn says.