I have always felt this way. It is very small group of devotees would will start to dissect what exactly is noise. In Finnish language, when you say melu, literally "noise", I would always assume it doesn't consist just the harsh noise as genre, but anything from Whitehouse, NWW, to Merzbow and Incapacitants, and so on... It would be unlikely to talk random guy and he'd start using terms musique concrete, HWN, power electronics, death industrial, and so on. Just throw most things under umbrella of what quite well explain that there is intent to be noisy, intent to be loud abstract sound as opposed to clearly defined music.