Mind you, I'm not American.
Had my account since I reached 18, though only started really using a year ago or so.
My last 3 jobs I got on LinkedIn, and I didn't even have a great profile in there. Didn't have a great summary, forgot to upload multiple projects, whatever.
Right now I'm looking for a better job, and for the last few months I've been tweaking my profile and it has given me good results, recruiters finding me quickly and for roles that are aligned to my profile, but also I've been receiving bizarre inbox messages of people who simply don't know how to set up their automation.
Last one was someone inviting me to "experience" their selected wine catalog. There's no indication in my profile that I would like to do something like that.
I think that because my main language is not English in there, I've been shielded from the jeets and their bizarre messages.
Ever heard the saying that LinkedIn is like reverse Tinder? Just focus on building a good profile and you'll eventually get messaged by desperate HR ladies. You don't have to be active on the site for that to happen - just wait for it to happen.
This is still one of the best ways of getting a job nowadays outside of recommendations. I got my last 2 jobs because some recruiters randomly approached me, and I don't even have a profile picture. It may take weeks or months though.
Basically it, though the results are faster if you set up a nice profile, highlighting what you've done and the results you brought in your job(s), not just the functions.
Some people say you have to post at least a week on LinkedIn and I despise that. I don't want to be a content creator, I already work my ass off everyday and still I have to think about writing thoughtful and compelling posts? Fuck off.
Most of the engagement I get comes from comments I leave on my connection's posts. I'd say it is the most effective way to start gaining attention if you don't want to be a content creator. Don't be a retard though.
What people say that a lot of open roles are found in posts is true, but it's not like a secret and hard thing to find. There are a lot of people there who dedicate themselves to share this kind of openings, you just have to follow/connect with the right people.
And for the retarded posting there, I just block if someone pisses me off. Has been working fine for me, I won't let a stranger piss me off through the screen. Most of my feed is made up from good content made by people in my area, really good insights.