After publishing a paper even with multiple proofreading and rerun the experiment, there is a feeling of "I should improve this" or "this section is so vague, I should explain more" or maybe the worst is when spotting an unintentional error in a graph or data.
Is it ethical If I make some kind of blog or extension about the paper that critique or extend my own work? I don't want to write the extension in journal though because there is still a lot of work to be done for the next paper.
My fear is it can backfire me instead, if I show what I thought a minor error then the editor or someone read that and try to retract my paper. Or it will become a judgement of my poor work.