If this is the official Crash thread... WhY iS iT So sHoRT?!
The biggest factors of why Crash Bandicoot's thread isn't as big as many would think it would be is because he's heavily associated with the Playstation brand and Super Smash Bros is a Nintendo fan catered game at it's core despite it being a celebration of all gaming since Brawl.
When Playstation All-Stars Battle Royale was announced without a doubt Crash Bandicoot was probably the most requested character and the most glaring omission on the roster, No surprise as he was de facto mascot of the Sony Playstation brand and not having him in a game that is a celebration of Playstation's history would "Almost" be like if Mario was excluded from Super Smash Bros.
When it comes to Super Smash Bros, Crash is on Nintendo's turf and while I'm sure he has his share of fans here too (Including myself), He doesn't resonate as much with your usual Nintendo fan who got their platformer fix and nostalgia from Mario, Donkey Kong and even Banjo-Kazooie during the N64 era. While Playstation fans got their fix from Crash and Spyro during that same era (Late 90's -Early 2000's).
This is not a knock at Crash as he is currently my most wanted 3rd party character and probably overall and thinks he has a good shot as any because of what he represents and has earned it based on his legacy.
But this is why I think this thread (While not small), Is not absolutely big and super active.