Probably because most people that don't care about using emunand have already sysnand firmware compatible with the games xD
For 4.x users, you wouldn't be able to play most games without an updated emunand.
yes you can, you dont even need a ds catridge. as long as its 9.2 or under and not a 2ds you can downgrade and install cfw. youre limited to cia games before 7.X encrypt though.
A 2DS or n3DS can't be downgraded because firmware older then 8.x didn't have the needed code to operate a n3DS's extra hardware, and for the 2DS, the lack of a physical wifi switch among missing 3D feature means that downgrading that would produce issues as well.
nah, discord is also a shithole. discord is good only if you have your own community with your own rules. or if you re lucky to find some groups that arent shitholes.
as about forums, when i recently revisited some old forums i used to be regular and seeing how immature most members still are i was like "Yeap. Nothing of value has been lost.". Unfortunately it's the good, comfy forums that ended up dead or shut down, especially because of internet centralization.