Therefore, before you choose a bounty to participate make your decisions properly before joining to avoid earning pennies after one year while working for projects on bounty platforms.
Bounty on Bitcointalk is always much better because you can see the spreadsheed all the time. For bounty platforms, a big problem is always lack of transparency how you are getting your stakes and if no cheat is involved. In Bitcointalk the bounty manager has to guarantee a fair evaluation and if a bounty manager does not a fair evaluation he will get problems and risk his reputation to receive negative trust. A good bounty manager will always care to treat bounty participants well, it's important to him to get new good projects and best participants in his campaign.
Big platforms are more intransparent and as big companies interested in profit.