If a bounty has more than 2000 participants in each campaign, stake based bounties are making no sense anymore, because everybody would get a tiny bit of tokens. In such cases fixed allocation with limited participation is much better.
As for me that is not the real case here, all i want is a real project that will pay me for my precious time and hardwork, either staked or fixed bounty allocation i care less about it, all i need is good results from bounties, arguing between fixed and stake won't change anything if all new projects are just scamming and luring bounty hunters