[scotty79]

> like 89% had zero database indexing.

This shocked me when I worked in a corp. Large team of quite good Java programmers and the database was severely lacking indexes. When I (hired as a frontend dev) pestered them about it and they finally added indexes they were pretty much glowing because suddenly everything took no time at all.

Indexes are the reason why databases exist. If you don't use them you might just as well use files directly.