Thanks this is helpful. It's limited to 2013-2015 but links to the following U of Arizona study which references an archive of IRC channels between 09/2016 and

Thanks this is helpful. It's limited to 2013-2015 but links to the following U of Arizona study which references an archive of IRC channels between 09/2016 and 01/2018: https://www.gwern.net/docs/sr/2018-du.pdf https://www.gwern.net/docs/sr/2018-du.pdf