For each transaction, there will be a flat rate of 0.01 BOS but this flat rate is currently under review and need to be finalized. Transaction fees are not necessary but act as a defense mechanism against DDOS attacks. The transaction fees generated will be distributed once a week to BOScoin holders according to the amount they hold. For MainNet, 70% of the transaction fees will be distributed to node operators and 30% will go towards the Commons Budget.
BOScoin TokenNet C++ will provide rewards without having to run a node.
How will the rewards be distributed?
Who owns the BOScoin TokenNet C ++ will receive dividends until the release BOScoin token D in 2018?
If I buy this TokenNet in October, will I also be entitled to receive this weekly reward?
I would like to know too

The transaction fees will automatically be distributed to everyone who is holding BOScoin in the web wallet on the official BOScoin website. So for example if you have 1% of all BOScoins in your web wallet, you will receive 1% of the transaction fees. This amount will be added to your web wallet once a week.
I need to verify with the team who exactly is entitled to this reward. I'd assume it's everyone holding BOScoin in their web wallet, but it could also only be holders who participated during the fundraiser. I'll get back to you on this topic.
This transaction fee distribution will start once the TokenNet has been launched (end of September 2017) and will last until the MainNet has been launched (beginning of 2018). Once the MainNet launches, this distribution to each BOScoin holder will stop. From then on only BOScoin holders who are running nodes will then be entitled to receive a part of the transaction fees.
More information on the reward system can be found in the
white paper.