punctuation is more serious than i want to be

periods have a definite finality to them. question marks are ambiguous: to those who rarely punctuate, they create seriousness behind the question; for those who frequently punctuate, they're a necessity. periods are similar, but they show more emotion, especially when compared to the effervescent exclamation mark. for example: thanks. vs. thanks! the period in the former makes it seem as if the bearer of thanks is not completely genuine. the exclamation mark, however, shows the user's apparent appreciation.
then there's the mighty apostrophe. if you're going to type with proper punctuation and capitalization, the apostrophe is a must-have. as you may have noticed, i don't capitalize my sentences or proper nouns. that would seem doubly serious, coupled with my punctuation. i'm not writing a novel. but i do everything else correctly [or i think i do]. one can't claim to be proper when they use then instead of than, their instead of they're [or there], or thats instead of that's. thats isn't even a word.
contractions also make things less serious. even if i were to write a novel, i would still use contractions. the only instance in which i would shun the contraction is if i were writing a decree or something of the sort.

i think i'd make a good analyst [at least with my own syntax].