Greetings,
The expected behaviour for customers that have created an account on a WordPress site with Woocommerce for Mailchimp installed is that the Signup for newsletter does not appear while checking out and signed in.
I’ve went ahead and double checked by testing on my end. Using the following steps.
1. Create a new account on the site with a new customer email. Making sure to check the sign up for newsletter option
2. Checked email for the Auto Generated Woocommerce Password and signed in.
3. Chose a product and checked out.
If these are similar steps followed on your end and for some reason the opt-in box is still showing could your provide some more information, such as a screenshot of a test customer profile and screenshots of the process of checking out.
Could you let us know the version number of Mailchimp for Woocommerce in use?
That should help us zero in on on what may be happening.
Thanks.
4. Notice there isn’t not a sign up for newsletter option.