Because you're a hobbyist and there's probably no chance in hell they'd contact you. This is this persons job and they look to be a professional. But imagine if

Because you're a hobbyist and there's probably no chance in hell they'd contact you. This is this persons job and they look to be a professional. But imagine if Google or Microsoft or <insert whatever tech co> decided to ask you to do a software project for them for no money but you'd get exposure, would you do it? If so, I have a shit ton of work that I'll give you while collecting my salary and give you "exposure"...