^: Not one of the options you listed, but it would have to be capitalisation. A single letter at the start of a word that shouldn't otherwise have one is something like italics for me, while ALLCAPS is bold (IE shouting).
V: Does that type of typing preference indicate how long I've been using the internet? Or does it instead indicate how very strange I can be? (Both?)
Also... Sorry for replying to add to something I stated earlier, but purposefully not answering the next question asked, I felt it was too soon for me to answer another one, and didn't really have anything interesting to answer with or ask...