Blogs aren't constructive feedback because they aren't easily discoverable. If you see someone has something stuck in their teeth do you yell it to the world and hope they fix the problem, or do you first politely and discretely inform the person. Resorting to blogs as the first course of feedback isn't about helping a project, or collaborating, it's about advertising to the world.
Sorry to have to say this, but you don't have the authority to define what is and what is not constructive feedback. Polite, well written blogs like this are accepted by all people as constructive feedback.
You literally just told me I don't have the authority to define something, then you went on to define it as being accepted by "all people". Isn't that a bit of a double standard?
Blogs aren’t yelling to the world. They’re just a place you put your thoughts for other people to read or not read. Think of it like open source internal monologue.
If youre too young to have context for blogging then it’s not your fault. The intent of “blogs” is generally indeed advertising now a days.
Yes, I understand, I'm saying that they don't, except in second order effect, count as collaboration. That's it. That's the whole point.