Tigger, with respect, can I give you some really good advice?
Firstly I must admit that your theory about neil and mainstream seems rather absurd BUT this is the internet and there really are some sick, crazy, lonely trolls roaming around. Im not talking one or two... There are around 3 billion people who use the internet so if even 1% of them are trolls thats about 30 million people.. and im willing to bet its more like 5-15%.
The only way to beat a troll is to not give them the time of day, they can be trolled back if you are clever but what is the point. By arguing with a troll you are letting them win, all they want is to relinquish there We all like a healthy debate but these trolls can not be beaten as they have no stakes, nothing to lose. If he is a troll then just ignore him mate, there are better things to do.