Am i a troll? Someone help me out.

I've been labeled by some as a troll on the basis that i like to post questions that are often controversial and invite debate.

But i don't see how that is trolling. Isn't that what a debate is all about? You can't debate if everyone agrees, right?

Granted the people who call me troll tend to be people with whom i've previously disagreed so i take their criticism with more than a small grain of salt lol.

All the same, i was interested in people's opinion on this.