Unmaintained [TH] Mark as Read 1.0.0

What does this add-on do?
This add-on adds two new permissions to mark threads as read, for you or for everyone. Additionally, it includes a new option to mark all feeder threads as read when they are posted, to distinguish them from regular threads.

For a contribution of any amount, you may install the add-on on a commercial site, and no additional add-ons are required to be installed. You can even use CSS or Javascript to hide the copyright notice.