Only if you want to...
We promised that your suggestions can remain anonymous and we're keeping to that.
However, if you do want us to follow up with you about anything (even if it's just to let you know that you've been heard and to share with you what changes we're making), we invite you to provide your contact details.
Absolutely no pressure and it's totally up to you - it's perfectly ok either way.
If you'd rather remain anonymous, no problem - just scroll to the bottom and click "submit".