JK. It is lucky. Like in this post.
(But 3.14… [pi] is cooler… this awesome number doesn’t just rock, it boulders! 🙂 ~Hijuyo)
Three blind mice, three musketeers, three stooges — the number 3 has an almost mystical power. That’s why we’ve got a surprise in store for Poptropica fans that we think will triple your Poptropica pleasure.

But what’s so special about the number 3 and Poptropica? We’ll give you one day, not three, to figure it out. Come back tomorrow for the announcement!

DIRECTOR D
I believe there is three explanations.
1. Notice the balloon. is balloons going to be changed?
2. Schoolhouse rock island! 😐 Weird, I know. But trust me. Go to youtube and type in “Schoolhouse rock:Three is a magic number” You’ll be ok.
3. Let’s face it: Math island.
JK, who knows? I wonder what those three creators are up to? Three ideas in the island shelf is enough, right? Three out of three people could see that.