That’s literally one of your headings. You can’t hide behind the arrogance of the EE community when you say stuff like that, especially if you’re just ordering a four layer board from JLPCB. No offense but you didn’t manufacture anything - you did the equivalent of spinning up an EC2 instance via the web interface, installed nginx on it, and blogged about it as if you were a cloud architect. That tone permeates the post, despite the titular admission.

I would approach any professional community with much more humility. Especially when you’re still learning stuff like ”When assembling parts, you may face delays if some are unavailable.”