Some years ago, my mother was sick in bed, and the family cat, apparently feeling she needed perking up, went out and got the best present it could think of. It hunted vigorously for hours, and exercising all the smarts and power it could muster, it found the perfect thing, and brought it back to my ailing mother.
My mother, awoken from fever dreams to find a half-dead bird in her bed, was not appreciative. Actually, she was more horror-struck. There was shrieking. Cat and bird were both banished summarily.
My mother and the cat both sulked for days, furious at each other for the cruel way they were treated when each had behaved as well as one could possibly hope for.
I myself have had an eerily similar interaction with a programmer who proudly showed me a feature which he thought was incredibly useful, and which had also been very tricky to implement. He was outraged to discover that I did not adore it. In fact, my first response was to ask how to turn it off, out of fear that I would trip it accidentally. He felt that I was unappreciative, resistant to change, and failed to appreciate how life-changingly useful this feature would be. (Our disagreement was not improved by the fact that it was possible but not practical to disable.)
He did have at least one thing right; unlike the half-dead bird, it proved unobtrusive. In 10+ subsequent years of using software of the appropriate type, I have never once wanted this feature, and have often been in situations where it would have been dangerous, but I did successfully use his version for several years without accident. I'm sure he continued to enjoy it, and his virtuousity, to no end. I just wish he hadn't given it to me.
Software is often full of dead bird features. It’s not valuable because it was difficult to implement, or because it makes developers happy; it’s only valuable if it makes the users happy. Save the dead birds for those who appreciate their excellence.
Edited to add:
It's not just programmers that come up with dead bird features, of course. For instance, the ultimate dead bird feature is almost certainly Clippy, the animated paper clip that used to offer to help you with your Microsoft Word documents. It was a masterpiece of technology, lovingly crafted, and beloved by its audience. But lots and lots of people found it not merely unattractive but actually repellent. There you were, working away, when AARGH! your eye was drawn to an animated paper clip, actively trying to distract you from your work in order to offer to help you do something you had no interest in.