The wcg sent to our byteball wallet can be used for what please ?

Nothing for the time being. It does allow any third party to offer discounts or similar things to also show their support for Byteball users who contributed to the WCG effort

If people have suggestions for new distribution methods, please dont be shy. It should have wide reach, include some kind of mechanism to prevent a single user from claiming the distribution more than once and generally address a community or group that is relevant and can potentially contribute to the overall ecosystem.

Final update before the bot-wars deadline:
You using multi wallet possible ?

Nope , just my single wallet and the smart contract wallet

The Byteball Bot Wars contest got some media attention: