"Essentially, every muggleborn student goes to Ravenclaw, because they are more excited to be learning magic than those who grew up with it are, or to Hufflepuff, because they haven't been exposed to the idea that it's a joke House. That pushes their overall numbers up, since the muggleborns make up so many of our numbers these days. Then the oldest families go straight to Slytherin, with a few exceptions like Mr Longbottom and Mr Weasley. That leaves few for Gryffindor."

While your reasoning for Hufflepuff means that they'd get more muggle-borns than pure/half-bloods, it doesn't mean that muggle-borns are more likely to go there than Gryffindor.

"if it is your wish to become learned, you should go to Slytherin, where you may discover secrets in avenues once thought lost"

I'm curious about what this means

It seems like you've gone for the fanon, bashing version of Ron rather than canon Ron - he wasn't nearly this obtuse in the books.

"Her parents weren't witches or wizards, a fact which turned into a discussion with Harry about the terms 'magical' and 'non-magical', as contrasted with 'muggle'. After all, goblins weren't witches or wizards either, and nor were many other magical peoples."

The fact that there are other magical beings doesn't really have an impact on the term muggle, seeing as it means non-magical, not magical. If there were other non-magical beings, you'd have a point, but there aren't so you don't.

"Blood and slag, he had just that morning had a warning against using goblin magic in public."

He was told "There is no need to hide the magic you know, but when in public, favour the wizard spells you are taught." Favouring wizard magic doesn't mean not doing goblin magic. In fact, the phrasing seems to tacitly accept the use of goblin magic in public to a lesser degree, or else it would be "when in public, only see the wizard spells". Especially with the first clause telling him he didn't need to hide his abilities.

I groaned a little when the peers he was interacting with started with Neville and Hermione, I've read that trio probably as many times as the canon trio, but then you followed up with great interactions with a variety of characters, so my faith in your great writing has been restored.

That fight scene in front of the bank was really good. You're doing a great job of hyping up the villains, and Hagrid was pretty awesome, too.

That last part was just incoherent for me. I get the value in being vague, but there's a difference between "I wonder who this is, how they're doing this magic and what they're here for" and "What the fuck is going on? Is that a consequence of what just happened or is it something new happening? Is that the same thing as the other thing or is it a new thing? Is that magic something the attackers of Gringotts did or is it one of the defences of Gringotts?"

After rereading it half a dozen times and thinking about it for a while, I think I understand, but it wasn't a pleasant reading experience.

At first, I was like "Damn, it's definitely effective, but also way too brutal for the situation", but then the grudges were revealed and I was like "Actually, that's probably the realistic amount of brutality the goblins would use here." Damn good writing.

I also love how you're building up Bellatrix into a badass villain

Damn, Bella is badass

Strange how you've added gnomes like this when in canon they're stupid garden pests

You still around?

Flitwick definitely isn't half-goblin in canon

"What sort of power could create a Potter heir when there had before been only an eight-year-old boy?"

Other than a loophole like the goblins did with their alternate idea of someone being of age, I think the only answer is using a time-turner (either a super powerful one that goes back 10 years or just using a normal one excessively). So I think it'd be cool if Dumbledore and Amelia started searching for a time-travelling adult Harry.

I love your portrayal of Slughorn

That whole "gzzaspich your fnaurei" is a bit of fridge horror imo. If you don't think about it much, it seems to be a normal thing that fits the vibes of the goblin society here, but then you think a little bit and realise that in order to be considered an adult in goblin society, you need to make a magical oath of loyalty, including the stipulation that you must dedicate yourself to being useful. They're all essentially forced to enslave themselves to goblin society. I doubt children have much in the way of freedom, either, so it's not like they can just not take the vow, and everyone outside goblin society seems to be prejudiced against them, so there's not much of a life to be lived if they leave, either.

This is a wonderful story, and wherever you are, whatever you are up to these days, I wanted you to know that I found it utterly engaging, humorous, stimulating (intellectually!), and unique! Goblin-raised Harry is a favorite trope of mine; your world-building has raised this fic to another level of awesomeness!

This omake is hysterical and I adore it! The prophecies of the various creature groups are an ingenious addition that makes me want to read more!

You’re a very talented writer; I hope you’ve pursued the craft! Wherever life takes you on this particular “Great Adventure”, I wish you the best in all your endeavors.