Advice Needed Has everyone moved to vB5?

When it first came out, it was heavily advertised as a social media platform, and I understand that many forums are going that direction to stay afloat but I assume that this forum and many others use vB5 and it doesn't seem that bad.. the image of it certainly doesn't seem social media wise, just a massive face-lift.

So the question of the thread is:

Has everyone moved to vB5 at this point in time?
Which do you prefer, vB4 or vB5 (hell, maybe even vB3)?
For a modern community, gaming especially, do you believe vB is a valuable resource or would another software fit me?
(Mentions of Discord.. as I'm sure it will pop up aren't necessary. I've already have one.)