Many people throw up their hands at the quirks of English punctuation, but no one would want to read an unpunctuated text. Look at this tiniest of examples:
Doesn't that look like some kind of disease, perhaps a rare form of trichinosis? Now, let's add some wordspacing and punctuation:
“Try it on, Otis. ”
Suddenly, it's clear that someone is speaking (quotation marks), that the speaker is addressing someone named Otis (proper name, capital O; and his name is preceded by a comma indicating direct address), and that Otis is most likely being asked to try on an article of clothing.
Or what about something like:
what i had had was had began not had begun what was i thinking
Even with wordspacing, this string is hard to decipher until we add all the punctuation:
What I had had was “had began, ” not “had begun. ” What was I thinking?