Sometimes, it's not a slip of the keyboard. Sometimes, a person keeps getting it wrong over and over. This guy is an example: http://mynissanleaf.com/viewtopic.php?p=389319#p389319. He was not just making typos. He didn't know what he was talking about. Read his further replies in that thread like
" A 40w light bulb is not 40w (that would mean it burns out after 1hr) its a 40 wh light bulb"
" A 3000w genny is actually a 3000wh genny"
"a 40w bulb is not 40watts. that would mean the bulb can only work for 1 hour. your average "cheap" incandescent 40w bulb is actually a 60,000w bulb (40watts times estimated lifespan of 1500 hours)
the RATE it consumes power is 40 watts per hour." UGH!
How about Reeler that I referred to at viewtopic.php?p=564743#p564743? What's surprising and scary is his background and "experience" with EVs: viewtopic.php?p=565245#p565245.
There are a few folks who fairly often get it wrong, say 50% of the time, not 80 to 100% of the time. For them, I think it's a lack of understanding and not a slip up either.