2 & 3
You're not actually having a discussion. Terry makes a good point when he says that geologists are moving closer to his point of view by assigning a younger age to Marble Canyon, but he's simply refused to address the issue that this is still far older than his YEC views allow, or the issue that it doesn't affect the age for the rest of the GC. He has also set himself up as both debater and judge of the debate when he unilaterally declares your posts a waste of time and exits.
Terry is fun to watch because of his silly antics, but you can't really have a meaningful discussion with him. And you certainly won't corner him, not in his own lair. You'll be banned for high crimes and misdemeanors first.
--Percy