What is a wesnothd?
The name of the Wesnoth server program, following the Unix convention of appending a "d" (for "daemon") to services. wesnoth is the name of the Wesnoth client (i.e., the game itself); wesnothd is the name of the Wesnoth server.
How is DRM not designed to ensure the above by restricting the ownership of a digital product to the original purchaser?
Once the software has been purchased from the business, it cannot be considered to belong to the business.
If you buy a laptop, should you be restricted from selling it to a friend when you no longer have a use for it? After all, you would be distributing a product created by a business without their authorisation.