Apart from the style of the prose, which is my subjective evaluation: This blog post is "a view from nowhere." Tiger Data is a company that sells postgres in some way (don't know, but it doesn't matter for the following): they could speak as themselves, and compare themselves to companies that sell other open source databases. Or they could showcase benchmarks _they ran_.

Them saying: "What you get: pgvectorscale uses the DiskANN algorithm (from Microsoft Research), achieving 28x lower p95 latency and 16x higher throughput than Pinecone at 99% recall" is marketing unless they give how you'd replicate those numbers.

Point being: this could have been written by an LLM, because it doesn't represent any work-done by Tiger Data.