Touche! I had no idea that term was in use. That said, I remain unconvinced that there is any danger of confusion here. Benchmarking compression algorithms is awfully specific; it's normal for fields to have their own jargon and conventions.
> Just because you don't see a use for mB doesn't mean it's open for use as a synonym of MB.
At the end of the day it's all down to convention. We've never needed approval from a standards body to do something. Standards are useful to follow when they provide a tangible benefit; following them for their own sake to the detriment of something immediately practical is generally a waste of time and effort.
I don't believe I hallucinated unit notations such as mB and gB. Unfortunately I don't immediately recall where I encountered their use.
> In case you're wondering, mHz is not a theoretical concept either.
Just to be clear, I was not meaning to suggest that non-SI prefixes be used for quantifying anything other than bits. SI standardized prefixes are great for most things.