Sort:  

Then announce the reward, don't give it, rather deposit to a smart contract, and mature it after 1 year time and then handover the reward, subject to a certain threshold monthly r weekly thread count average.

Well not giving out a reward for an extended period defeats the purpose. Then people lose site. After all, if they dont get something this second, they are gone.

We live in an era of instant gratification.

That could be true in a bull cycle but might work in a bear cycle.

After all, in a campaign, it is always the secondary reward although the handsome part of it.