Honest question, how does Iran's support for Hezbollah and Hamas directly affect Americans? I'd argue that Saudi Arabia's support for ISIS and Al-Qaeda had more/actual negative effects on Americans.
Iran had nothing to do with 9/11. Perhaps you're thinking of Iraq, which also was not behind 9/11, but a similarly named country that we happened to go to war with shortly after 9/11.
Since you haven't stopped despite repeated requests, I've banned this account until we get a guarantee that it won't do political flamewars again.
I suppose I need to add that this isn't any kind of position on Israel, Iran, the U.S., terrorism, 9/11, bombs, or wars. It's just a position about what sort of threads aren't ok on Hacker News. One could flip all the political bits in your comments and its status for HN purposes would be just the same.
My colleagues and I have a lot of empathy for the feelings of loyalty and love that drive a person to fight these battles. The feelings are important and the issues are important—much more important than Hacker News. Nevertheless the moderation job here is to protect HN as (1) a community and (2) a web forum dedicated to what gratifies intellectual curiosity. Nothing threatens that more than political battle, so we have to be proactive about this.