Science is a method of inquiry, not an institution or group of people with titles.
They are not perfect, but institutions like peer review or universities do provide a framework and incentives for quality.
If you are spending time, money, and risk based on a claim, verification still helps to cull info that is deceptive or done with methods so shoddy it might as well be lying.
Sure, you can verify through your failures, but that isnt great. You company goes belly up and you can confidently say the blog was bullshit.