Seems to me the list is an appropriate mix of posters (not that the numbers matter). Although I think it should be "heavier" with "Showcase posters" - Dan's picture actually shows that it is non-Showcase heavy.

When I first came to the forum, Off Topics (and those who "lived" there) was king.
That was where all the activity was. The counts of posts, threads and views in Off Topics far outnumbered any other except the "Band In A Box for Windows" section. (They were neck-and-neck).
The Showcase was a step-child forum at the time.
(no offense to real step-children intended).

And, yet, the Showcase was what really mattered to me at the time.
I had never actually even BEEN on a forum before.
But I was truly wanting to know if BAND-IN-A-BOX could POSSIBLY be the product that I had dreamed of finding for years.
I had purchased BIAB years earlier (version 5, 1990?), but gave up using it because I could never make MIDI programs sound "real". (I did use it to check that the timing of my Nashville Numbers charts were correct by entering the chords of a song to check that).

So, when I first encountered the concepts of RealTracks, I desperately wanted to know if they were as "magical" as they were being touted to be.
And I found these forums. Mid-2012.
At the time, very few people were posting to the Showcase.
A lot of those early Showcase posts were pretty basic and did not convince me that BIAB was worth the hefty price tag (hefty for me, anyway).
BUT...there were a small number of posters there who were doing some pretty good stuff (production-wise).
I found that encouraging.
I REALLY wanted to include some fiddle and pedal steel in my productions.
But I was still not convinced enough to open my wallet.
Then I found a Showcase post from Steve Young.
Steve's production was studio quality.
And it was mostly BIAB.
I then walked through the entire Showcase to find everything I could that Steve had posted.
It was well worth the effort.
Steve's work convinced me that BAND-IN-A-BOX was "for REAL".
I bought it the following week.
(Thank you, Steve!!)

To this day, I consider it one of THE best purchases of my life.

Since that time, the Showcase has grown. By leaps and bounds.
The number of good producers posting to the Showcase has grown exponentially.
(I think of it as a "producer showcase", not a "songwriter showcase" - because it is about BIAB, the product, as far as I am concerned).
There is some AMAZING music posted to the Showcase.
And the VARIETY of offerings has continued to expand. What a great thing!
And, hopefully, some of those posts do what they did for me...convince the next guy/gal to BUY BAND-IN-A-BOX.
Every songwriter, every musician, every producer on the planet should own this software.

AND...the Showcase is a great, positive community (as Bud so elegantly described it).

If you think about it, the Showcase and its ability to convince someone to buy BIAB, must be considered by PGMusic to be THE most important part of the forums.
Certainly the Off Topics forum is never going to serve that role.

So, if the "Top Posters" list is dominated by "Showcasers"... that is a very good thing.

(Personally, I don't like when I show up in the list. I've got too much music to write and produce to be spending time doing anything else)

150+ Songs produced using BIAB RealTracks
And 50 more...
and some more...