While we're on Units I must say that the metric system beats U.S. Customary by a long head!
For example BTUSCF (heat content of a gas) makes my eyes glaze over - as does MMSCFD (gas volume flow rate) - although one does get used to it.
Over here however, when metric units are mentioned, spelling and format often go right out the window. So it is that a big bottle of 'Murkin wine often contains 1.5 L instead of 1.5l. Not to mention those 50MM lenses often found in photographic fora.
I could go on about failing to capitalize units like Volts, Amps, etc. while incorrectly capitalizing Liters - but it is probably best to let sleeping dogs lie ...