for example: prize allocation for a campaign (signature) is around 2,000,000 tokens and if the project only has 1 participant in the campaign (signature) and when the project has been completed or not scammed, is it true that the participant will get the sum of all tokens (signatures)?
or maybe not at all, for other reasons?
I don't think that will be the case, It is like more than one participant will be active for the campaign, but If only one participant is the only accepted user, No bounty will pay that much to just one person, they are likely going to reduce the allocation. Some bounty always state this from the begining of the campaign that if there are less than a certain number of particpant the allocation will be reduced.