Instead of having users register by activation key name, a more secure "key" should be available (eg. 32 character hash or similar). In this manner they could still name activation keys with readable/referencable names but would use the cryptic key with subscription-manager.
Created from redmine issue http://projects.theforeman.org/issues/5615
Upstream bug component is WebUI
Upstream bug component is Content Management
Upstream bug component is Activation Keys
I do not envision this bug being addressed in the near term. I am closing this out. If you believe doing so is an issue, please feel free to re-open and provide additional business information. Thank you.