Also, (at least where I'm from) there's an expectation that as an undergraduate, you'll address professors using proper tone. This way, you end up writing lots of "I'd like to ask (...)", ", "is it possible for me to", etc. The writing gets full of fixed-phrases with lots of "I" and "me" - the author's "I-word salad". And academics I know tend to reply directly, without any formally required style of writing, so their communcation is more natural.