I welcome the Robinhooders with open arms! They are paying tuition to attend the Hard Knocks School of Stock Market Knowledge.
I think Robin Hood would rather have all their traders profitable or at least treading water since the more they trade, and the higher their cash balances, the more money Robin Hood makes.
Unfortunately it will probably end badly for a lot of these new traders/investors. That's life, though.
I have seen lots of $1 stocks with strong earnings and solid balance sheets triple, quadruple and more, but I have yet to see one go below zero.