The idea of what counts as noisy is truly as subjective as headphone preferences, if not moreso. I consider the MX Browns to be unbearably loud, the the Blues to be just as loud with an even more annoying clacking sound. I find buckling springs to be equivalent to a screaming child. So yes, while the Browns are the best of these, I still would never go back to a keyboard with them.
Loudness isn't the only issue, however. I find the sound signature of scissor-switches to be the keyboard equivalent of nails on a chalkboard, even though they are far and away quieter than mechanical alternatives. I'd take the springs over them on my laptop, were such a thing an option.
More than anything else, it is the SOUND of my Topre that I value the most. The typing is a dream, gaming response is out of this world, and they last forever... and while I would never give up my realforce for all of these reasons, it is the sound (that is to say, the lack thereof) that impresses me the most.
Nice, I never heard of Topre I might have to get one in my next build but I really dont mind the mechnical noise of keyboards! I enjoy consisten reptitve noises actually...