Why write a fanboy text with unfair comparisons that hide the Postgres limitations?
For instance, for many simple needs MySQL is simpler than Postgres, with similar performance and consistency.
* No need for a connection pool, while many use cases with Postgres require PgBouncer and Co.
* Easy sort (and basic search) of multilingual text, because MySQL has case insensitive UTF8 collations.
* No need to VACUUM, which can be a hard problem (it was, the last time I used Postgres).
For full text search, I once worked on a project that considered several alternatives for this, including Postgres. Manticore Search was finally chosen because it was more performant, with better search results.
If you run a single application, or a few instances of the same application, you don't need an external pool and most frameworks have an internal connection pool anyway.
Not sure if I'm missing anything here, but if I want case-insensitive search I simply create an index on lower(column) and use that to query.
VACUUM is something you need to pay attention to at scale. And at that point you need to know your DB anyway and tune it. For smaller applications (and I don't mean only toy applications) it usually isn't an issue.