What makes genome sequencing useful?
By itself, genome sequencing is useless. Genome sequencing becomes useful only when linked to metadata.
At the begining of sequencing, researches had problems interpreting sequencing data. Even though lots of genetic data were collected, they didn’t understand how to properly interpret it. Now, it is common to collect enough metadata in order to analyze the samples in the right way.
Genomic information is just a small part of it. Lots of other things need to be measured and analyzed in order to understand the biological system (proteines, RNA transcripts, metabolits and many other biological molecules).