The All Basic Developer forum has a mailing list
Mailing lists died back in the 20th century.
and IRC/chat feature for non-developer interaction.
Which I had to ask you to go into the one time, as nobody ever uses it.
I think you would be hard pressed to find another BASIC project more active than O2 & SB.
Yes, O2 is active, which is why CBASIC needs to move here where people using it and exploring it can actually discuss it, instead of the Chris Boss/Bob Zale tactics being used to keep it suppressed and intentionally keep everybody out.
ASM BASIC compilers don't have the draw they once did.
BASIC itself is dead. PureBasic is the last actively developed and supported commercial BASIC.
It sounds like FB is trying to stay relevant with a C emitter translator that generates 64 bit code.
They brought out the C emitter years ago, but it never went anywhere. But, it seems they are finally trying for 64-bit, which is a must-have. At least FB actually has a usable forum.