Global setting to block email domains on ALL forms

In my company, I’ve created a recurring joke -

The Ideas Forum Is Where Ideas Go To Die

I recite this whenever I speak to a HS service rep and they advise me to go to the ideas forum - just like this request!

7 years this request has been active … seven… years… and you have yet to implement a global domain block to prevent spam… I’m feeling particularly chagrinned that we just committed to a fresh 2-year commitment right now. Now I have to decide if I want to spend the next 3 or 4 hours combing through all the forms on our website, updating each one individually, just to block the spam of our competitors. Thanks HS!