Burning from the inside, that's Io, a moon of Jupiter.

When I play chess, the focus is completely that. It feels like being IO myself, a burning thing, circling around a center of gravity.

Apart from that, I am used to being called "Io", since Io is "my" support hero in another game. And as a supporter I tend to be active in the very few groups I join (though I rarely join new groups, since there are limits to my available time).