It is not very clear how you would withdraw where do I send the command to.
Why would it's balance be higher than the amount of deposits, am I missing something.
In general I like the idea and want to support it when I get a couple of answers I will send a test amount.
Thanks for the question - you need to send the transaction with for example 0.001 SBD to @tipU - and in the memo you are typing the desired command, for example: withdraw
I will be writing about it with more detail in the next posts.
And the other question
For example the payout from this post will go into the profit :)