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OpenAI announces plan to transform into a for-profit company
(www.theverge.com)
This is a most excellent place for technology news and articles.
So just show him an example, if he then continues antagonizing you, call him out for it and for moving the goalposts etc... you could have solved this in no time, i really don't get the point you're trying to make... I'll show this guy who i claim to be a troll by being a troll myself, even though i could prove him actually being a troll with far less effort than that.
That'll show the internet how serious and not a troll i am...
I don't know why your brain got stuck in this mode, but maybe try to snap out of it...