Personally I frequented the Power On (RP) board, and when the NOA mods closed it down everyone revolted and we made our own forum, based on the role-play Yoshi Bodyguards.
I even ran the role play for 5 years on a paid for server. Man... You're only as nerdy for Nintendo as me if you know what Nsider and a Let's Play on YouTube is. xD
So who remembers good old Nsider Forums? Did you get the Plumber rank? I got past the Yoshi post count to Donkey Kong and stopped, I believe.
In fact if that website still exists, I'm on the top 10,000 posters who ever visited Nsider.