Do you have your group guidelines posted on your site?See?/g/GroupManagersForum/wiki/Member-NoticesAnd there are other sample guideline documents in the wiki.?
Also you can suggest the complainant mute the topic so that he doesn¡¯t get it anymoreSee.?/g/GroupManagersForum/wiki/Footers
Frances-- GMF wiki for help.?Search box at the top of each page.
Check out the?new groups.io Help Center??Use your browser to search or download?the PDF.