You've set your sights too low. A very desirable dev doesn't need to interface with LinkedIn at all.
They get offers long before they even decide to switch jobs. They simply never had a LinkedIn account to begin with. It's a friend that calls them to tell them about the new project they are about to hire for.
Companies can either spend more on recruiting fees, or more on better devs that will try to get their friends hired...
Yup, half of the team I'm on is made up of people who have worked together in the past and are good. That's how I got the job and how I get all my gigs. I haven't had to really interview for a job since 2002. LinkedIn is entirely unnecessary when you have a large enough network of people who enjoy working with you. The jobs come to you.
In Europe? No. European founders? There are so many in the Bay Area. For some reasons they don't seem to stay in Europe.
ADDED: I've been in a sufficiently specialized subset of the industry for a long time that random recruiter emails aren't likely to be interesting. And I know a lot of people at different companies. So I have pretty much a bare bones profile on LinkedIn as I'm not really looking for inbound pings.
What has been your path that landed you amazing highly paid roles and why do you think you're not missing out by not hearing from a broader set of companies?
Got my job at Yahoo Travel via Topcoder referal (before LinkedIn existed). Worked there for seven years. Got many many many spams from LinkedIn to my yahoo-inc address when people uploaded the corporate address book and LinkedIn wouldn't let you unsubscribe without making an account. Made enough to pay a mortgage on a bay area house with a single income.
Got recruited to WhatsApp by Brian Acton who was breifly my boss's boss at Yahoo. Worked there for not quite eight years. Made enough to retire comfortably.
Could I have been more highly paid? Probably when I was working for Yahoo, I got a bigger salary when I moved to a startup. I doubt I could have found anything better post 2014 though.
If I was looking now, I would probably look at selected company's hiring pages and/or through niche sites like HN's who's hiring etc.
I don’t like the take-home assessment trend, but I do understand it from a hiring perspective.
For example, I looked at the blog author's LinkedIn profile. Regardless of his level, it's not a good profile in terms of presenting his maturity as a technologist and ability to deliver outcomes. Which lowers his odds of being noticed by good recruiters even at his current caliber of dev. To at least some degree, this contributes to the negative experience he is having.
I'm sometimes surprised by weird hiring practices at a place I didn't expect. Even different positions at the same FAANG can be completely different experiences.
On one extreme, a very desirable dev has the luxury of ignoring all but the most thoughtful recruiter pings on LinkedIn. He can also tune out companies that are too small, not tech-focused, don't have a good reputation, whatever. The small remainder of recruiters and companies that he will speak to are much more likely to have their shit together and provide a solid recruiting experience.
On the other hand, if someone doesn't have a ton of options, they end up being much less selective about whom they speak to and where they interview, in addition to being less likely to be recruited by the top players to begin with.
I think this explains the dichotomy of why some people consistently have horrible experiences and some never have them. And then there's the "hint" that if you only have the horrible experiences, there is something you need to strategically change.