While working on optimizing Comments field for my blog, I noticed it could have been useful to have a GDPR checkbox in the form, to get privacy acceptance before a comment is submitted.  At the beginning I though to inject the checkbox processing the rendered comment form, but as I already modified FieldtypeComments to create a Language field, I decided to continue on that road to add the GDPR checkbox. We will not modify the original FieldtypeComments in wire/modules/Fieldtype/Fieldty