Why Jellyfish?

The significance is in the definition of Fluther...
http://www.fluther.com/whatisfluther

I read that. But what does this website have to do with jellyfish besides the name?

bcuz jelly fish r the answer to ot all jelly brains

Ah. Well, it's a collective noun and Fluther is a collective of people, helping each other.

But why not some other collective noun, such as gander, pride, or y'all?

ah. Well, Fluther.com was an open domain, and nearly every other english word wasn't. Just be happy we're not cluder.com. ;)