I bet if you put in a bit of effort you could figure out how to use a debugger and find things like the mode coefficient yourself. I've seen people with less wisdom and conviction accomplish more. There are times when even I ask questions I could answer on my own because it's just plain faster (and may take someone else less effort if it's something they're already working on), but most of the time it's more convenient to be learn how to do things yourself and then do them.
English bugs the crap out of me too, but if it's between consistency and making sense I'll choose the former (I do make exceptions though...like if I am "quoting something". Notice how I put the quotation closing punctuation before the sentence ending punctuation since the sentence came first - I'm trying to have my cake and eat it too).
At least with "it's" it's still a contraction, so it still makes sense to use an apostrophe. After that I'm just like "okay if it's not it's it's the other one"