Respectfully, I think you are wholly missing the point. Running a link along and adding commentary to what other people have written is just social media, it is not at all the same thing as reflecting on a concept thoroughly. We’re discussing two different concepts.
I have a link blog which is links plus commentary. Each post takes 10-30 minutes to write. They're exactly like social media, though I try to add something new rather than just broadcast other people's content. https://simonwillison.net/blogmarks/
I recently added "notes" which are effectively my link blog without a link. Very social media! I use those for content that doesn't deserve more than a couple of paragraphs: https://simonwillison.net/notes/
And then there are "entries". That's my long form content, each taking one to several hours (or occasionally more, eg ny annual LLM roundups). Those are the pieces of long-form writing where I aim to "reflect on a concept thoroughly": https://simonwillison.net/entries/