What if 4chan never existed?

The thing is, 4chan is not 2chan's offspring, it's a direct copy, more or less. As long as 2chan exists, 4chan, 8chan, 69chan will be born, and they all will be exactly the same as today's 4chan, seeing how they are all photocopies.

I see what you did there.

Well, there would be another website containing Anonymous. Or Anonymous would be free as a bird in every website existing and everything would be like a mini-4chan...