I think you're conflating SEO blogspam with genuine passion for writing.
One claims to be the other in order to shield itself from accusations of being SEO blogspam, the other is just a person wanting to share their experience.
I have no issues reading about how someone discovered how TTL can help in a Wireshark investigation, even though I already know it. I do have issues with someone's blog showing in online searches simply because they figured out which keywords to place (and where) in order to get to page 1 of Google, displacing actual articles of relevance to what I'm seeking. It's an absolute shame that actual companies have fallen to the same trap and even intentionally push preferable articles that result in fewer Support cases while burying the actual issue under SEO'd garbage. (The less said about Microsoft "dead-links" where they retroactively remove the content, the better)
I would love to read about a first timer understanding recursion; my hopes would be either that I would learn a new way of understanding it myself because of the enthusiasm they had as a result of their moment of inspiration, or I can add to the discourse on my own understanding.
I want to read about discovery and education! I don't want to read inspirational articles or how to monetize/appeal to investors when I'm looking for technical things.
My favorite part of mentoring is seeing my mentees make it work by their own inspiration and mental skill; I don't care if it's inefficient as long as they did it on their own. We can discuss optimizations later, I just want to see people pushing themselves to a new level and be excited about it. They can write an entire Russian-Novel length post as far as I'm concerned, I will read and revel in every word as long as it's their excitement because of their success.