Well I use the time-honoured method, chiefly for brevity and clarity. I mean, it isn't exactly as if I made up the ploy...

You say that I should make a huge and polite effort to correct an error. In the case in question, I'd suggest that the perpetrator of the error made that error lazily, and does not deserve the time and effort it would take for me to do that. I mean, has he not heard of dictionaries? Dunno about you, Joe, but if I'm ever unsure about a word, I look up the spelling. That's why you won't find spelling errors in my posts. It's not that I'm incredibly clever or anything, it's more that I make the effort to get it right. The man who types "supercede" and "supream" clearly doesn't do that. Shoot at the right target, Joe!