Just to be clear since you replied to my comment, coding demonstrations are almost never a part of my interview process. That's not the part I was complaining about. Once I have narrowed down the potential applicants to a few, I do 15-30m interviews where we talk about things on their resume (e.g. "how did you solve X problem at Y job?") or list of skills (e.g. "how would you do task A with tech B?"), and their reason for applying. So far, I've only needed to have one round of interviews like that, because I usually get that one candidate that is best suited for the job.
The part I was complaining about is narrowing down the pool in the first place, the pre-screening, the part you mention:
> Why can't employers look at the plethora of code-related stuff with my name attacked to it that's out there on the Internet [...]
You wish (and I wish). The answer is because everything that can be gamed will eventually be. Each time I'm hiring it gets worse. Examples:
- GitHub profiles are still a decent filtering system, but people have learned how to game that with hello world-esque repositories in the area of interest. So you have to take a really close look at the actual content of the repositories themselves. Sometimes they have complicated file structures, lots of files, commits etc., then you have to actually look at the code and find it's just a "baby's first app" copied from some tutorial on how to game GitHub repos for the interview. They also plaster their GitHub bio with all these stickers and icons and programming languages copied from some templates on how to make your GitHub look attractive.
- Resumes are getting to be worse, a certain class of people say they worked for 5 different Fortune 500 companies, thankfully they all use the same template so you can filter them out. Others just keep lying over and over or embellishing their experience so hard it's basically a lie. If you're trained at it, you can filter them out because you notice patterns, similarities etc. but if you're hiring for something that you don't have experience in then it's getting harder and harder to distinguish. Sadly it's caused me to automatically assuming someone from certain countries are BSing it if their resume sets off my BS meter in any way.
- I used to use Discord communities related to something I was hiring for with a #jobs channel (for example, Flutter), but those "gamers" have figured that out too, and now when you post there, you get a bunch of BS applicants. You can sometimes tell because they don't really bother setting a profile pic or anything for their Discord, so you know they probably just joined to game the system.
All in all, when the application process is over, I am ending up feeling more and more irritated at the amount of time I have wasted filtering and filtering and filtering.