I think in this case mostly informal personal conversations (which can include conversations e.g. within particular org’s Slack groups or similar). It might also have been a slight overstatement that the paper was “widely discussed”—this impression might be due to a “selection effect” of me having noticed the paper early and being interested in such work.
As a matter of interest, where do papers such as this usually get discussed? Is it in personal conversation or in some particular online location?
I think in this case mostly informal personal conversations (which can include conversations e.g. within particular org’s Slack groups or similar). It might also have been a slight overstatement that the paper was “widely discussed”—this impression might be due to a “selection effect” of me having noticed the paper early and being interested in such work.