I suspect it might be far too fiddley for this and you could spend all weekend on your computer but it feels worth mentioning here ... Staffordshire uses a free database to list folk stuff. It is sortable and filterable. https://www.obvibase.com/faq There is very little space to add general info so it would still need a FB/wordpress type page for chat.
By clicking on the User Name, you will requery the forum for that user. You will see everything that he or she has posted with that Mudcat name.
By clicking on the Thread Name, you will be sent to the Forum on that thread as if you selected it from the main Mudcat Forum page.
By clicking on the Subject, you will also go to the thread as if you selected it from the original Forum page, but also go directly to that particular message.
By clicking on the Date (Posted), you will dig out every message posted that day.
sj