if it happens, then it is because it is technically possible. Probably something to do with inter-sample peaks (any ressource about “true-peak” metering will explain it better than me).
On the mastering topic:
in my day job we receive hundreds of CDs every year, ranging from self-produced EPs to world-class engineered albums. I’d say roughly 80% of them are way over-limited. Difficult to listen through the entire thing without ear fatigue. Clipped. Rectangles of a mass akin to white noise.
Mind you, as a broadcast radio, those tracks we choose to enlighten our listeners with are aired through “some more” processing (legal requirement of max. FM deviation, cohesive level riding, a bit of coloring vanity, and a tad further excess clipping to bring the program level to a reasonable loudness relative to our hertzian neighbors). You can guess which tracks sound the best on the air, between those with an initial dynamic range of 1dB and those that still dare betting that the volume knob of your device exists.
tl,dr; with dynamic reduction tools, please be mindful that most of them will easily destroy your music.
Imho, there is more energy and subjective impact when the listener feels that elements have room to expand than when listening to squashed everything.
In my own practice, i can’t say i master anything, most of the time i add some multiband compression and fine eq corrections and that’s it. Then again my stance is that in electroacoustic music the relative levels, colors, and timbres of sounds are a major part of the artistic discourse, so “mixing” does not really happen either; it’s more that you work and rework until it sounds like you want it to, be it cohesive or totally disjointed.
Using the -23 LUFS standard as a loudness target level while working ensures that you almost never worry about a sound being too dynamic to fit in; you’re not fighting against the 0dBFS wall when trying to bring up a phrase here or there, you just do it and still have room for a bit more gain. The EBU R128 has been a very liberating thing for me.
Also, emulating the “old times analog” chain helps to avoid wild dynamics if unwanted: think of each stage of a chain (slightly overdriven preamp, tape machine, slow responding amplifiers, etc) as adding a little compression/peak limiting to the signal.