I'll help you out with why "alot" (a lot) of people are "Nazis" about grammar. It is called communication. In this day and age where the internet is one of the most common forms of communication, I think that far too little effort is spent on making sure you are correctly conveying what you are trying to say to others. Bad spelling and grammar is essentially the same thing as walking up to someone who doesn't know you at a coffee shop and saying "Buhbububblahfafafa", then getting pissed off at him and calling him a speaking nazi because he doesn't understand what you are saying.
"Wanna", while not even a word, is actually short for "Want to", not "Want A" as you used it. So in essence, you posted a video for the world to see with the message "I want to droid."
I say if you really want to droid that bad, then go for it. Be droid until you are happy that you have been droid enough. But don't expect others to hold back criticism for your poor spelling/grammar skills. Ok? Good.
/Rant