0. Too rich cargo, gold and gems every time . "Damn food again" at Sinclair.You become rich too fast.
I certainly didn't have this problem. I get far more in the way of food/textiles dropping from cargo than I do gold or silver. Ofc - as there is so much more to buy in Oolite than in the spectrum version of Oolite, having the same financial progression doesn't make sense.
1.You become Offender when you attach clean ship at any place and the police comes to protect the victim (if available and not buzy at the system).Once you shot police , you become Fugitive. Maybe exclusion should be Feudal and Anarchy planets.
Install the Anarchies OXP, that should resolve most of these concerns. A feudal OXP is in the works, Communist and Dictatorship OXPs already exist.
3.Now you become strongest in the world too fast.You almost should be not able to take convoy alone and travel alone to dangerous planets without being killed.So that join convoys to trade or wolfpacks to rob.The wolfpack ,like now,could include fighters and a Piton to collect cargo, revenue is divided. Woflpack tactics could be implemented : patrolling areas and calling the rest when a convoy is detected.
Plenty of OXPs out there which toughen up the opposition and will teach you the quality of humility. OSE, as already linked by Lestradae, opens up many many cans of whoop ass.
As for making dangerous planets more dangerous, you could always play the game in strict mode.
4.AI of convoys. Now they allow to unknown ship to come to close position at 6 of trader.At least warning should be.
Am not sure what you expect the computer AI to do in response to this. Aggressive response wouldn't make sense.
5. Anti-laser maneuvers, yours and enemy's. Should be adequate to enemy skills and ship type. Now random, a Piton sometimes hits you regardless how do you fly.
Some pirates are better at hitting you than others. Given you say the opposition isn't tough enough, this appears to be something of a contradiction.
I find that my being hit depends on a) how well I'm flying, b) how big the ship I'm flying is, c) how fast it is and d) what sort of pirate vessel is pursuing me. Flying a Wolf MKII, I can evade almost all incoming enemy fire (there is always a random chance to get hit), whereas it is much harder to evade in an Anaconda. The Cobby MkIII is one of the easier ships in the game to hit with laser fire, as it has quite a tall and wide profile. If you trade up to a vessel that has a smaller profile, you'll find you get hit a lot less often.