The traditional square stop-button has been disappearing from media players across the board. This seems like a deliberate trend; a subtle tactic to keep you "captive" - don't present the user with any obvious option to stop watching and they will be less likely to think to.
I've received an email from @netflix asking me to "finalise the signup" when I don't remember registering. Worried about the identity theft etc went to a chat & discovered this is a "PROMOTIONAL EMAIL".
Frustrating: Can’t turn off @Netflix autoplaying next episode kids’ videos directly on smart TV (must use web interface) Bat-Sh*t Infuriating: @Netflix apparently CAN’T disable autoplay for KIDS profiles (only adult ones)? Shame on you.
When a user finishes the episode they are currently watching, Netflix automatically proceeds to the next episode after a countdown.