Is it just Mohave (OSX 10.14) and Safari that is constantly logging out of the forums? I'm also seeing the problem on mobile devices. My preferences are clearly marked to stay logged in, yet almost every time I return to the website I have to log in again.
I have "intermittent" problems with Win10 and Internet Explorer, so I think this is a Jive problem
Whatever is going on is new. I have not had these kinds of login problems in years.