Good idea but not very smart plan

My tip:
1. Each person who send content need to:
a) Like profile
b) Like post
c) Share post
Then this is effective because all friends will see such post and info about zencash...
If you only are all the time in group of people where everybody know zencash, you will never bring many people to your profiles and zencash. It should be also shared (info about this "contest") in many other places like youtube, blogs, fb.