Don't you think that is shady to do to your uploaders though? People can just submit some claim to copyright without proof and you remove those files and like you say once they're gone they're gone and so are the earnings.

Ever consider there are some folks in the world who are haters or just like to be malicious to have people's files removed? As a legit host you should take more strenuous measure's to prevent such a matter because as I previously stated not every uploading is uploading illegal content but because someone files a DMCA report and you do no further investigating other than "taking their word for it" then people who are uploading legal content get screwed out of their earnings.

What would or could you do anyhow to malicious DMCA reports? Nothing. The content is removed, so is our earnings and its not like you'd take legal action against those individuals.