This is more of a curious question, but what's the difference between hacks and mods?
I was just researching about this and this is what I found from
here:
"Mods are utilizing some developer approved method of modifying the game. ... Hacks are attempting to achieve the same result, but via non-approved methods."
Pretty sure star trees were a non-approved coding though, idk.
edit: apparently there are many definitions between users of hack and mod, but from what I'm picking up, modding is a more 'subtle' term for hacking. I'm not seeing the difference, but either way star trees are not allowed. You can definitely say that it wasn't harmful, but Nintendo has all the right to patch them out since they do own the code and people are editing it without permission. Pity to the people who worked hard in hacking and buying them, but this was a risk they were supposed to know esp. since ACNH constantly rolls updates every now and then.
And we shouldn't be asking Nintendo to replace the lack of star fragment trees because these trees were never meant to exist in the first place, it would sound entitled for us to demand to replace something big N did not intend to exist. Just my two cents.
edit 2: As I mentioned, I will say that I forgive players who are absolutely new to the game and were not informed by hackers that this was illegal, but otherwise if you know they were illegal trees, you knew better even if you were merely a buyer and weren't directly hacking.