How did you come up with these bounties ? i could barely pick good ones over these shit projects here in the forum.Cant even know how many bounty scams i did participate because i dont really have a good time to do researching that is why i always ended up not getting paid ! you are indeed luck to have that profits in just few months here in the forum.
A quick tip I can give you is to treat a bounty you partecipate in like you would an ICO in which you invest your money. Since you are investing your time doing bounties you need to at least read the whitepaper and look for the basic things you would look before investing in an ICO.
I promise doing this will reduce drastically the number of bounties that scam you.
I think also so although to follow the gift we do not spend money money do not like investment but still if fail we will be very loss time
and in my opinion it is very dangerous if to choose the wrong bounty then from reading whitepaper is very important so that we can better understand and assess the project that we will follow