Yes, bloggers talk about things they just learned about rather than something they're 360-degree experts about.
But that's good. It helps them -- it reinforces their learning and they certainly find out if they got something wrong -- and it helps us -- readers see a lot of articles pop up right when people are interested in and passionate about learning something, rather than months later when they know it all and have moved on.
Early blogging is quick iteration of knowledge. Blog about something you learned today, not years ago.
But that's good. It helps them -- it reinforces their learning and they certainly find out if they got something wrong -- and it helps us -- readers see a lot of articles pop up right when people are interested in and passionate about learning something, rather than months later when they know it all and have moved on.
Early blogging is quick iteration of knowledge. Blog about something you learned today, not years ago.