Thanks for consideration and cleaver question,
The main reason is for our participant's privacy we won't use publicly share google doc, instead we are using one of the most advance token sale platform where user can directly claim their coin >>
also unlike other project which only have one bounty campaign, we would have a dynamic bounty/airdrop campaign as per user's feedback and that's why we call it Agate bounty v1.0  (in fact by next week we will announce V2.0) in few different language with different tasks. please make sure you follow our social media and blog post.