Yes, insurance and rebuying process is one of most economy breaking things!
5% is nothing. This make ship losing not an issue. Destroyed? Just rebuy for two cents!
FDev give us a lot of ways to earn huge money, but not thinking about how players will use them. Nerfing mining? Why? Just make players to spend their credits!
Let us pay REAL(in ED reality) prices. Let money work.
Make money easy to earn and easy to spend.
Make mining and trading really rewarding, make many services more expensive - ammo, maintenance, fueling...
Insurances, taxes, paid engineerings... Material buyingselling/sharing is a good thing, because this is has sense. Players will have option between grinding and moneyearning activities.
Rebalance ships/modules/suits/guns prices. Laser gun which has price of four sidewinders is silly!
Ship have integrity, why weapons not? Etc Etc Etc
Number of ways are just limited by gameplay team's imagination.
Let's look at rebuy/insurance: 5% and you have your overengineered ship from the ashes. Completely not good. Let us decide what amount of money we will pay for what amount of discount at rebuy every month depended on ship+modules price. For example, 1% of ship's price for every 5% insurance coverage, 19% for vanilla 95% rebuy discount, every month.
Inter Astra is a great base for this service!
If we are rich or sure about indestructible nature of our ship - we can fly without insurance and pay 100% if we lose ship.
Or get guaranteed stock Sidewinder from generous Pilots Federation!
If money will have regular incoming/outcoming, most "problems" of game economics will not be a problems. No mining nerfing needed. More gameplay options will appear in the future. Like banks and interests, or moneysharing between players.
Right now many players sit on bags of credits and they do not know where to spend them.
Think about that.