I'm guessing #7 contributed to the fact that it took the author 1 year to find another job. If you're desperate, you can most likely find an _okay_ job in 3 months. If you don't have the luxury to wait for a "good" job, finding a job tends to happen faster.
I think you can go faster if you use third-party recruiters, as much as I often despise them. Try to pick out one or two individuals within recruiting firms that are not awful. They're out there. Recruiters are given the jobs that corporations need a warm body to fill now.
Yes, you can absolutely always quit that un-ideal job and completely omit it from your resume. I don't see the wrong role as a good reason to turn down a job when you have bills to pay.
My other feedback on this article:
I wish it generally talked about unemployment insurance. It can be a complicated process, and I wonder if the author had any success there.
#1 should is a part of the basic life skill of understanding the difference between coworkers and friends. I do have friends that started as coworkers, and they did a lot more than help with the mechanics of getting laid off. I do agree that it's not a life skill that is taught very well.
If you want to turn coworkers into lasting friends, you need to be proactive and invite them to do things outside of work.
#3, I'm just not sure I agree with it. Getting interviews is an excellent indicator. At the very least it means that your resume is attractive. I don't think it's very common for companies to waste their own employees' time interviewing people for roles they aren't serious about filling.
My rule of thumb is that if you get beyond the recruiter and talk to the hiring manager, the company is serious and intends to fill the role. Maybe they get around to it or maybe not, we all know how priorities can change.
#5 seems like a waste of time. Either you know someone who is a hiring manager or you know someone who can refer you through a company's referral system. I think those are the only two activities that are productive. I wouldn't want to get any of those requests in my LinkedIn Inbox.
Writing open source software is a waste of time with respect to job hunting unless you are looking to build a portfolio. Your time is better used physically applying for jobs (which takes a legitimately solid amount of time).
#6, totally agree with that. The author absolutely overshared, and should have known better. Corporations want to know that you can keep secrets. Transparency is almost never in the best interest of a company.
As I mentioned above, I'd only agree with #7 if you have runway/a spouse earning income.
I'd almost replace #8 with "enjoy being laid off." Spend some days doing activities meant for joy, especially if you've exhausted your job application pipeline for the moment. I'm almost hoping I get laid off, I love not working, and I loved all the stuff I got to do the last time I was laid off. I played two video games the whole way through and read an entire novel, which are things I rarely get through when I'm employed.