That is one of the most silliest suggestions I've heard in a long time. Forcefully strip out a range of 'colours' just because you don't like them or find them annoying? Not only does this discriminate against many people, but there are still uses for 'bright' colours. I bet you use a white background? Or white somewhere? That is the brightest colour (I know it's not a colour, don't start on that) you can have. Also ^8 looks perfectly fine on a black (or another dark) background.
You do realise that there are 3 ranges, red, green, and blue. Just because 1 of these ranges is above 155 doesn't mean the colour is bright. Even two of them below doesn't mean it. There are plently of shades of gray which are useful above in these ranges. And we've all lived with the 16bit palette for many years without too many issues, many of these colours which would be deemed as 'bright'.
