If you click on "Virtual World Dynamics faq" near the top of the page, there seem to be no other threads than yours (Snarlygribbly), BUT if you change the start date to some time ago (eg 2020) and click "browse archives" you'll see there are dozens of threads and lots of people using VWD over recent years. I suspect you didn't get much response to your post because it is very open-ended! (and, as MikeO says, Gérald the creator of VWD has had some personal problems recently otherwise he would likely have replied. We wish him well).