By participating in this bounty you are earning bounty stakes every week or every day depending on the category (signature or app download, etc).
You may wait until the end of the bounty and get POVR tokens for your bounty stakes due to the stakes-to-token conversion rate (that will be revealed at the end of the bounty campaign) or you may sell the half of your bounty stakes for etherem at any moment on TOKPIE exchange while bounty campaign is active.
Follow this guide if you want sell bounty stakes for Ethereum: https://tokpie.io/blog/get-ethereum-eth-instantly-and-tokens-later-by-participating-in-povcoin-bounty/
thank you for answering my question and I will continue to support this campaign