DRM by and large is a cancerous technology. There's other forms of protection that work as well with less penalties for the consumer. The primary and oldest one being cd keys, or some other version of encrypted verification. Having people dedicated to hunting down locations where the piracy occurs and trying to stop it there is also effective.
For reference the penalties on drm are...
increased game size
increased resource use during operation
Potential conflicts with game code
Requires an internet connection or it literally does not work
And depending on which you go for, some are literal Spyware, the only distinction being how invasive is it?