I recently ran a poll on Twitter to see if it is common to write discussions to journal papers. With this term, I meant to ask if researchers submit a written discussion of an interesting recently published paper. I’ve only done so once, and I have the impression that submitting discussions is now less common than it used to. I think researchers used to read the print copy of their favorite journal and then perhaps send a discussion, whereas nowadays we read mostly electronically, access PDFs and read across a variety of journals.
The results of the poll are below – although it seems there was some confusion with regard to the term “discussions”: