Legitimate question: how come it's free? Do you plan on charging at a later date, or is there some paid account necessary to share via web? I just can't believ

Legitimate question: how come it's free? Do you plan on charging at a later date, or is there some paid account necessary to share via web? I just can't believe this would be completely free, no strings. I don't mean to cause offense or anything; I'd actually love to pay money for something like this.