As you can see in my SO user page I have two Enlightened badges. But I have three answers accepted with at least 10 up votes.

Why is that? Is Enlightened meant as "with more than 10" instead of at least?

And what's the meaning of "First answer ..." in the badge description?

As you can see in my SO user page I have two Enlightened badges. But I have three answers accepted with at least 10 up votes.

Why is that? Is Enlightened meant as "with more than 10" instead of at least?

And what's the meaning of "First answer ..." in the badge description?

As you can see in my SO user page I have two Enlightened badges. But I have three answers accepted with at least 10 up votes.

Why is that? Is Enlightened code as "with more than 10" instead of at least?

And what's the meaning of "First answer ..." in the badge description?

As you can see in my SO user page I have two Enlightened badges. But I have three answers accepted with at least 10 up votes.

Why is that? Is Enlightened meant as "with more than 10" instead of at least?

And what's the meaning of "First answer ..." in the badge description?