How would you even know about the site, unless you had read about it on HN?

How would moving to BitBucket keep you from reading about it on HN?

If after you read about it on HN, you spent lots of time playing with it or reading and arguing in these comments, and you regret spending that time... how can you blame GitHub for that, and again how will moving to BitBucket help exactly?

Yep, it's pretty obvious, really. That you're very confused.