Many (Almost all campaigns) has allocated their bounty amount to some bounties (i.e signature, social media, blog/media, translation bounty) with difference allocation of bounty.
Also, what's can considered will be paid generously? above $500 for each participants? Just fyi, almost all translatior would be get paid at least more than $2000 in each of translation (If you looking it more carrefully, there was a campaign has paid $100,000 to their translator).