I just went to do some copy-paste action, and it looks like most of the posts were deleted. It must have been the mutual friend who deleted them from her status, because both his and mine are gone and there are only a couple left. I was going to copy those couple, but they're pretty lame without more context.
The post I called out is:
"You mean an agency that exists to take a percentage of the money we earn and then also takes a percentage of the money we spend. Fucking thieves."
"I'm not taking a particular position here, but can someone show me where the IRS collects taxes on the money we spend?"
This put him in full-on meltdown mode where he called me self-righteous, pompous, a dick, an asshole, and an assortment of other colorful names. He even started talking shit about my favorite college football team. It was really amusing to see him escalate while all I did was post calm rebuttals to the stuff he was saying; I wish she hadn't deleted everything.