I've got to say as a Sonic the Hedgehog fan, our community has the most dedicated fan base. We've got numerous talented people who work on fan comics, fan games, and even hacks. I'm part of the hacking community, and am a Tech Member on Sonic Retro, one of the largest Sonic sites on the internet. In fact, some of the other Tech Members on the board went on to help make Sonic Mania, as well as the mobile ports of Sonic 1, 2, and CD. Not to mention the same fans worked on Sonic Origins recently. Sure we've got our share of terrible fans, but every single fan base has a toxic side. Next I would say the Pokemon community is also very dedicated as well, there's a large modding scene there too.