I completely agree with this. There is a tendency – and I am as guilty of this as the next person – to write about this stuff as if it is a binary On/Off switch: Safeword is invoked. Scene ends. Aftercare ensues. Real scenes aren’t like that. I should get better about working that into the things I write about safeword, since in the real world I always put a big emphasis on using “Yellow” frequently. For precisely the reasons you outline, especially that pressure re: safewords. Safewords are freighted with a lot of psychological and emotional baggage for submissives; my piece “The Safeword Minefield” gets into that baggage at length.
Submissives: use “Yellow” in any of the situations this Anon describes, or any situation where you’re in distress but don’t feel it’s a scene-stopper.
Dominants: when your submissive Yellows: Stop. Communicate. Regroup. Take a breather. Then determine as a team how and when to continue.