I agree that the problem of schema rot is an issue, and I'm sure that Treasure Data is a great solution. I'm also sure you had good intentions posting this. However, that said your article reads like an advert rather than the kind of detailed technical explanation that HN readers deserve.

A visitor is probably looking for a technical answer to "How can I prevent schema rot?" and the only answer I see in this article is "Contact us to learn about Treasure Data".

If the technical details about how Treasure Data works and what it does under the covers beyond just sit between my app and RedShift were more prominent and the sales pitch was less prominent that would be fine. But instead it just looks like self promotion of an advert article.