You can now limit leaving comments to only your paying members. Free members or non-members will still be able to view comments.
Just add two new lines (the last two, below) to your Cove configuration code in your theme:
<script>
const Cove = {
publication: "your_site_id",
contentId: "{{id}}",
memberId: "{{@member.uuid}}",
memberEmail: "{{@member.email}}",
requirePaid: true,
isPaid: {{@member.paid}}
}
</script>
Any non-paying member will see the following message instead of the commenting form.