I'd prefer a blockchain code of conduct by the community and for the community. The code of conduct should be built on satoshi principles.
You would understand the principles by reading bitcoin Whitepaper.
The principles/commandments in my opinion are:
1. Thy shall not Centralize the blockchain
2. Keep the blockchain immutable
3. Remember to trade peer-to-peer.
4. Keep bitcoin scarce
5. Thy shall keep the blockchain censorship resistant
6. Thy shall use escrow.
7. Thy shall not pry on people's privacy
8. Thy shall implement reputation score for reducing scam to the barest minimum
9. Thy shall keep the blockchain trustless
10. Thy shall keep the blockchain permissionless
I like this idea bitcoin code of conduct, who will be the judge and what court will be the highest court to preside over matters as it relates to the entire bitcoin community. Why I like this is due to the fact that bitcoin is a movement and having a social framework will be a great move but again this will take time to be achieved.
If you want some non troll ones like at the start of this topic.
1. Thou shall not fractional reserve anyone's bitcoins
2. Thou shall honor the blockchain code and its laws created by all of the people
3. Sticks and stones may break my bones, but words may never hurt me (let everyone have free speech and not resort to violence)
4. Thou shall not give another man my bitcoins or trade it into fiat but only I hold my coins and trade them p2p
5. Thou value everyone`s opinion equally (so long as they are of age to vote)
6. Thou shall not kill (unless I am defending myself from something trying to kill me)
7. Thou shall not steal (from anyone)
8. Thou shall not bribe (no using sexual favors or bitcoins to gain more power, fame or persuade peoples votes)
9. Thou shall respect everyone personal beliefs and preferences, so long as they abide by the blockchain code.
10. Thou shall not en$lave another being, but treat them as my equal, I am not better than anyone but no one is better than me.