My answer: 1861 Fort Sumter flag.

I'm hoping this isn't some enormously controversial take, but imo there's way too many swastikas on this subreddit.

I think most people who come here (apart from those trying to identify a flag) are looking for cool originals, historicals, redesigns, and modern flags. I think the only people coming here for Nazi symbolism are those who want to post it. If it were a swastika every other week, that would be fine, but I feel like my feed has been at least 25% swastikas, and it's starting to get aggravating, because I browse this subreddit in public, sometimes within the view of other people. They're a symbol of hate, and they make people I know uncomfortable. I don't understand why people post it either apart from possibly being sympathizers, there is really nothing original or cool about swastikas, from a design perspective, they're as interesting as a cross or an arrow. I understand freedom of speech and expression, I'm not calling for a ban, I'm calling for you all to chill tf out. Its not cool, it doesn't lead to interesting discussions, and its not interesting when you post Hindu symbols because they "look like swastikas" either: there's actual reasons more interesting than that to post those. If you can't keep yourself from posting them, at least mark them NSFW, they're actually banned in some countries and it would be respectful to do that at least.

Thank you for coming to my TED talk, I'd love to discuss with anyone who has comments or something intelligent to say.

I'm getting a little sick and tired of those posts. Pictures of various Imperial German flags, associated far right regimes, or even the Kekistan flag, and seemingly candidly asking what the flag is. Almost in every case, if you look at the user's profile, you'll notice they are a NSFW profile frequenting all sorts of racist, sexist, homophobic, transphobic, conspiracy-minded subreddits.

Those users know exactly what they're doing. They know exactly what those flags are, because they are not hard to research. The posts usually don't follow the submission guidelines, asking basic information about location and context.

Those submissions should be automatically removed, and users banned and reported. Unless OP seems sincere, this should trigger a permaban. And none of us should reply, and we should downvote those to oblivion.

/rant

EDIT: a letter

This is the شیر و‌خورشید Shir o Khorshid (Lion and Sun) flag.

It was the flag of Iran after the constituonal revolution made official in 1907 until the 1979 islamist coup d’état

It features a symbol that is very important to all nationalist Iranians: the lion and sun, which has had importance and presence in Iranian culture for 8 centuries.

It is the flag of all Iranians who are opposed to the Islamic Republic occupying Iran—which includes Iranians of many different political ideologies.

Recently, it was waved proudly by millions of young people in the streets of Iran, who were met with their slaughter at the hands of IR thugs—30k+ innocent young iranians were slaughtered for rallying behind this flag and demanding the end of the IR.

The overwhelming majority of the protestors consider Reza Pahlavi their leader and are calling for the return of Pahlavi—who has advocated for secular democracy in Iran for quite literally decades.

The flag has been thus solidified as the flag of our resistance against the occupying islamist regime and our transition to secular democracy.

Any other ideas you have about the flag, are wrong. If you spread lies and information other than this about this flag, you are repeating lies from the regime and you are opposed to our resistance to the freedom of the Iranian people.

Lately I've seen more and more AI-generated flags pop up in this subreddit. I believe we should ban them as the people that "create" don't actually need to put in any work and it's quite insulting to people that actually design flags.

As a big flag nerd I love checking out this sub to tickle my interest, but over the past week or so ive seen an increasing amount of facist symbols and dogwhistles riddled with this sub. Im just wondering whats up with all the new facist shut.

I posted about a flag that I was really proud of and had made into the real thing and even added the required comment but MINE post gets removed and the one millionth Hitler flag that constantly gets posted here.

I feel like every single day there's a post asking "What's this flag?" and it's always some nazi/fascist/white supremacist bullshit. Worst yet, if those people took all of 2 seconds to Google it they'd find it for themselves, which leads me to believe their more interested in posting nazi shit disguised as "innocent question" than actual flag design.

I joined this sub because I like vexillology, not to help every third person figure out which of their neighbors is a racist. I honestly think the mods need to pause the "identify a flag" option for a while.