While I do appreciate this joke (and I do hope this is a joke), I've recently had a project majorly held up because a lead dev didn't understand SQL. It's great to admit gaps but it's equally important to close those gaps.
> As a hiring manager I interviewed software engineers and tried to filter for object-oriented knowledge. Retroactively, it’s clear I was hypocritical.
As some one who has been on the other side of "rejected by an interviewer who didn't understand the thing they've interviewed you about" I, again, appreciate the transparency, but I'm not entirely feeling that the lesson has been learned in the case.
There was a time in my life where I felt ashamed that I didn't know calculus... so I learned calculus and my life has been better for it. While refusing to admit ignorance of a topic is particular problem in tech, confessing that you don't know something and gleefully stopping there is not much better. Holding people up to a standard you do not hold yourself to is a major problem in this field. The technical people I've learned the most from hold you to a high standard and hold themselves to an even higher one.
Of course not every engineer has to hold themselves to a high standard, but if you want to write a blog about a topic, then part of the requirements here is that you do hold yourself to a high standard. Yes, we all have gaps, and we shouldn't let shame get in the way of learning, but we shouldn't let shamelessness about what we don't know limit us either.