Not true. He previously ran a site called MegaUpload which hosted copyright infringing files. This is why he created Mega, which is an end-to-end encrypted cloud storage service similar to OneDrive of Google Drive.

Even if Mega users host illegal or copyright infringing contents he can't be convicted for it. In fact, he won't even know about it.

I'm just amazed that not everyone is using it. People don't seem to know about it and they're not advertising it. They probably made a deal with LEA or politicians not to spread the word in exchange for not being extradited.

But he is still being extradited. I believe he lost his decade long argument of "why the fuck would you extradite me to somewhere I've never set foot for something that isn't actually illegal and where I'd suffer inhumane treatment"

His extradition case has been going on for more than two decades IIRC. He'll die of old age before he's ever extradited to the U.S. There are too many legal avenues to stall and thwart the case and the U.S. doesn't see him as important enough to warrant damaging relations with an ally (New Zealand).