New? I've been a Jomsocial customer since at least v2.6 (2010) And you're right, J4 has been promised for far too long but with Joomla 4 Beta 7 and Joomla 3.10 Alpha 5 now out I'd say it might be prudent to wait. Of course, that difficult decision isn't mine to make - or yours.
As for your post being only between you and the Jomsocial team - if you want privacy raise a ticket otherwise expect pushback if you spoil the atmosphere for everyone on an all members forum.