I don't have HTC One to make a comparison - but if you have some "vanilla" remotes laying around and can see the IR LEDs blink in all of them when active - then yeah, probably you do see into the IR and I don't!
Yeah, I just tried both TV remotes (one is just a Samsung remote). I can see all of them, but it's only a faint glow. Try it in a dark room, you should be able to see it.
Nope, I just tried and went into a pitch-black room with a remote control whose LED on the Mac camera looks very bright, and tried to look at it while activating the LED - nothing, not a blip, I can not see the IR LED with my eyes...
I'm like the parent, I just can't see the common IR LEDs with the naked eye, not even faintly, not even in pitch darkness with the led 1cm from my eye. I think you just have a skill that we don't. Or maybe you just have IR leds with shorter wavelengths...