I agree on that forums arent as popular anymore as back then, most of it is because I think the Social Networks have taken a hugh spot on that.
And people are more and more lazy, so the little they wanna actually "type", they rather spend on some stupid comments on Facebook, Twitter etc.
Back then, IRC chat was a great thing (and I still think it is today), but since Messengers like MSN Messenger (yeah, old as well by now) and similiar came out, many people that were new to IRC sided with those because it looked more fancy. Smilies, animations and all that stuff that messenger apps (especially today) come with, makes it look more fancy than good old IRC chat.
I was sad for a long time, that many people i knew on IRC once, were off that and never came back. I still think that the way IRC works, is still unbeaten by other chat apps.
The more lucky I was when I got to Discord, in which the text chat pays really great hommage to IRC i think.
Anyways, too much off-topic. I love fourms, but if you're getting back into that stuff these days (after a longer time not doing any of that), its appearant that you cant get people to forums as plentyful as back then, when Forums were much more "hyped".
I tried multiple systems over time (and I am not really good with stuff like php/mysql), and I found some systems quite nice, like vB, although I think there were always many security issues that came with it over the years. I tried IPB and somewhat couldnt really get to like it. And Woltlab Burning Board, which I think looks a bit more "dry" but has some nice features, I think vB is still behind of. But Burning Board can get somewhat visually boring long term, which is why I thought I give vB another try.
But with the lack of good (for me) themes and mostly mods that were already abandoned at least a couple years or longer, i am not sure if vB is the way to go for me now. Not seeing to upgrade to vB 5, because of the high price, and the limited usage on my end, to justify the upprade. But i didnt thought that vB4 would be so "passed by", concerning Themes and mods.
Its really too bad.