Yes but to be fair, on this website alone there might be over 500,000,000 responses. Combined with all other places, things add up
yes but characters only take up 2 or 4 bits and assuming there are 500 million unecessary commas, they would take up only 12.5 mb total
It makes the linguist inside of me furious that you'd deem any periods at the ends of sentences ‘unnecessary’, even though I forget them myself, sometimes (mainly in IM).