Dunno, but I sure like em :D *Waves middle set of arms*

If a character is well received or popular enough, it can inspire others to create/purchase their own.

I think they are! Recently settled on a design for my cobra featuring six arms.

From my experience, yes, it's entering the "mainstream" of what's trendy or interesting in the furry fandom

I have seen a good deal more four-armed fursonas coming about!
Its very exciting to see~

You talking just fandom wise or also mainstream animation and cartoons?

It's not too bad as long as it doesn't get excessive.

I think we're starting to see lots more second-generation multi-armed characters from creators who aren't familiar with the term multifurry and have just seen lots of mulifur characters without associating a subfandom with the concept. So yeah, slowly but surely it's disseminating to the rest of the fandom.

Yeah, seeing it more. Possibly because it's getting spread faster with more widespread internet access.

Sora deserves it. But Nicky doesn't.
Still, the two like each other the most.