Earlier quoted context omitted.
The problem is the person who selectively applies to a job or three doesn't need this. The target is the person who has dozens of applications in various stages of flight and is "casting a wide net" to put the strategy charitably.
I suppose so. I tend to apply to a few jobs a year, but mostly because it seems like a neat place to work, or a change of pace. One thing I have noticed, as I'm extremely skilled at this stage in my career, is that there are logically fewer jobs. Spray and pray is more, I think, a junior thing.
I'm at least intermediate, I've done senior work before, and this is still my strategy. Applying to one or two jobs isn't going to do anything. It takes at least a calendar year to find a job that wants me. I can't imagine applying for less than 5 positions a week, and usually it's at least triple that.
I'd love to hear a different strategy for a developer that doesn't specialize in any given language or technology. Most of the employment gates seem locked for me. Yet I hear of other people doing things just like that and making bank from it. Who knows, maybe people don't like me as much as I don't like them.