"He seems to have this need to join in every conversation regardless how little he knows about any of the subjects. Once he is proved wrong, he goes off and starts a thread of his own."
With respect Richie, that doesn't appear to be so. If you check his posting record, about 75% of the political threads to which he contributes were actually started by him, so he is 'joining in' relatively few. Indeed it would appear to be yourself and Bonzo who join in with almost all his conversations once he has set them up.
As well as this thread I would refer you to -
Petition re: conservative tax dodgers
Charles and Camilla attacked in car?
Con-Dems restrict peaceful protests
Now only the rich can have lawyers...(UK )
Subsidy to Ireland to increase UK deficit
The latest (Rupert) Murdoch Menace
Next Con-Dem game - Labour Camps?
the other RB