I like pjc50's answer, but here's an alternative take: it's a matter of intention. Trolling involves making people angry because making them angry is fun. It's

I like pjc50's answer, but here's an alternative take: it's a matter of intention. Trolling involves making people angry because making them angry is fun. It's not any kind of intellectual stance. The alternative is a method of teaching or learning, where unpopular opinions are as something between a counterfactual for exploration and the best way of getting a question answered on the internet: by asserting a wrong answer. "Strong opinions loosely held" requires the opinions to actually be loosely held. You have to admit there are other options and you have to let go when yours are shown to be silly. On the other hand, keep in mind that intent is impossible to judge from the outside.