Dear Dacha, hi there!
As we have multiple Russian-speaking team members, we are all taking care of the Russian channel to some extent. However @p0k has proven his commitment to the OWS from inception, so it will be him mostly moderating the channel. This is basically one of his core responsibilities within the team on top of other matters he is helping us. Moreover, he is NOT receiving extra rewards for moderating the Russian channel, it is included in his OWS moderator role already (please do take a good look at the graphics I provided above: we request extra rewards for only three moderators, while we opened 4 language channels - @p0k is not included). As for why we have chosen him - as mentioned before he has been proactively engaged, interested in the project and he has our trust. In OWS we reward people who show interest, execute and support others. Maybe one day that could be you too?
When it comes to the other three members - yes, you understand correctly. We do want to pay them exactly 400USD for the support they are providing with moderating the channels, reviewing rewards claims of other Sandboxers at the end of the month in their native language, and general marketing support.
All the best,
Sofia