Let me amend or just change my statement. What I mean to say is the MC's actions doesn't revolve around the straw hats but that some of his actions simply seemed to have been positive for them. Also since that's the case just finish your story how you had planned and I wish you well on your current and future stories.

That's what I've been trying to say. That the MC actions whether directly or indirectly will affect the straw hats and that at that point in time it was positive. While for the marines it was negative. Well it seems I'll have to go back and read your story to see what happens to Garp later on. Also a bit of advice I would hold on updating your story. Since as I assume you know the manga is in the egghead arc and already some mysteries and even more questions are being revealed. Of course you don't have too. Your story is original and you've probably been creating your own path and storylines that differ greatly from canon already.

You're correct that the straw hats aren't mentioned a lot in the story but eventually you're going to have to address their situation. Well as the author I guess you don't have too but it would be good to do so and then move on from them. Also what I am saying is the actions of the MC have or at least should have consequences. Those consequences favor the straw hats at that point in the story from my perspective and while the MC might not have killed any marines. The whitebeard pirates did so and this still weakens them. I mean yes, the marines were probably just canon fodder but they're still people and important too, lol. Also even though the MC befriended Garp. Garp is still a traitor to the marines and therefore doesn't become a future marine instructor training the next generation of marines like in canon. I believe this should be considered weakening the marines. Correct or do you somehow have Garp return to the marines or at least be in their good graces after the war?

With the death of Teach, Luffy's path to becoming Pirate King becomes easier. So even if the MC killed Teach for personal reasons he still helped the straw hats indirectly. Also by having Garp no longer become a marine instructor like he was in canon to teach the next generation of marines. You have inadvertently weakened the marines. Also by saving Ace and Whitebeard, you have destroyed the public's perception that the Marines and the World Government can protect the people thereby weakening them. Also with Ace alive he will probably train to become stronger so not as to become captured again. By becoming stronger he'll become a greater threat to the marines and he will help Luffy achieve his dreams since he and Whitebeard have no desire to be pirate king. Therefore the MC has helped the strawhats and weakened the marines directly or indirectly by his actions.

A predictable cliche of a self insert being reborn in the one piece world and growing overpowered at a extremely fast rate due to foreknowledge. Only to serve as a fix it tool to save characters that fans liked from dying and killing characters that fans dislike. Also serves as a fix it tool to bring down the world government and the marines at a faster rate than in canon. As well as to serve as a shield to ensure the protection of the straw hat pirate crew and to assist them in achieving their dreams. It would have been more appropriate for the main character to simply join the straw hat pirate crew and serve as the secondary protagonist. Disclaimer: I stopped reading after the War of Marineford.

After chapter 130 both translation and editing quality drop to being poor. Please work on increasing the quality of chapters instead of quantity.