To go off on a slight tangent... two definitions of "trolling" that popped up when I just googled.
Trolling is when someone posts or comments online to deliberately upset others
To antagonize (others) online by deliberately posting inflammatory, irrelevant, or offensive comments or other disruptive content
It seems to me that trolling broadly encompasses two types of behaviours... the first is pointless and harmful - outright abuse, deliberate attempts to disrupt and ultimately end debate, popping up on the feminism board of mumsnet to state how ugly feminists are and how their demands are all nonsense, before disappearing again. That sort of thing.
But a lot of "inflammatory" content, or content that others would call offensive or disruptive is nothing of the sort - it is nothing more than expressing an alternative view which angers or offends people who hold a different view AND are not willing to listen or to have to justify their position.
To some extent, when we post online, we are either in an echo chamber telling each other how obvious the "sex is real and matters" position is, or we are in a space with a mixture of views where "sex is real and matters" is regarded as trolling.
I firmly support the idea that the most important people to talk to are those different to us. If we believe in the idea that some beliefs and positions are better than others, then almost by definition everyone we meet is someone who, ideally, we would educate, or we would learn from. Without that difference of opinion, without the risk of being accused of trolling, we might as well not bother speaking.