Is the donation set on default on the market place and old style wallet?
I will leave donate on default setting in my old style wallet but my partner use the market and his is not donating on default
What % of users are donating ?
Better if we should make mandatory a small % from every member.
What target is the immediate holding price in cents? 20 cents? Do I need to change anything to support that level or this is default.

If you are selling your own personal coins you do not require a license
Therefore each member couls set up their own automated bay / any other coin on chainz right?
Market place can have a seperate waller address so it can not drain main wallet
Put asking price of other coins per bay and list your wallet addresses for coins you will accept. They send bitcoin to yours with coin / address in message box, market place monitor chainz and auto send Bay to theirs?

Is that possible? Every memeber can be monitored for selling price and market place can produce entire table like exchange? But just a list of people trading their own coins on their own market place.

maybe it could not work? Just one possible plan. Depended on a single block explorer may not be perfect?

I have not tested 10% of the market place so it could exist such a feature.