Strong disagree. I like binary formats because I can just fopen(), fseek() and fread() stuff. I don't need json parser dependency, and don't need to deal with compression. Binary formats are simple, fast and I need a way smaller buffer to read/write them normally. I don't like wasting resources.
Binary formats (that you can just fopen(), fseek(), fread() etc.) are generally super platform dependent. You can read in an array of bytes and then manually deserialise it (and I’ve done this, for sure!) but that’s basically one step away from parsing anyway.
Binary formats are painful to deal with from user perspective
Sane for 3rd party devs