I need to know more about this. Why has my IP, that I only have used on one particular board, having broken no rules to my knowledge,is now useless. Unlike a ban I can't even appeal this error. I want to know if it's an algorithm thing or if other users/board owners can play a part (ie. reporting posts as 'spam' leading to this situation).

This thread is meant for newcomers those who don't know a thing about Endchan - or perhaps have the wrong conception, some old users might have. I intend to add more posts with time, but lock the thread for now to keep the parts together. Later comments can come into this thread too.

Endchan is an imageboard like any other but no imageboard like Endchan.
A community maintained platform, where communities set up their own space and regulate themselves. At global/website level we aim for the freedom of expression as the United States' Constitution allows it. On board level the communities can decide themselves what they allow as long as they keep the global rules.
With the imageboard format Endchan also provides a relative privacy and anonymity as the internet is lacking so much these nowadays.

The name and the theme of the chan were inspired by Douglas Adams' immortal novel The Hitchhiker's Guide to the Galaxy and the various adaptations of it. Beyond Endchan's Birthday we also celebrate Towel Day each year to honor of this great work.
This is true since the foundation of the site in 2015. Since then the place evolved thanks to the users who provided the mascot End Knight and Greyanon to represent it.

From the original humble size with continuous growth Endchan turned into this thriving imageboard with impressively modest amount of users. Weathered the storms of the internet, the collapse of other chans, and direct attacks. Many communities came and went, a few rooted and all together created a patchwork of colorful assemblage from all over the world, pressing it to embrace an international character.

Today, as always, Endchan is like the planet which gave birth to it:
Mostly Harmless

We need customization of posts(not only threads, all posts) quantity limit in a hour, added from one IP address.

And we need customization of posts(not only threads, all posts) quantity limit in a hour, for all /rus/ board.

LynxChan uses file mime-type filter to keep our anons safe. This the official thread to add new items or anything we missed.

What file types do we don't support that you would like us to add?

IF YOU ARE HAVING A PROBLEM WITH UPLOADING A FILE, TEST HERE AND LET USE KNOW THE MIME TYPE YOU GET:
http://mime.ritey.com

Here's the current list:
"image/apng",
"image/png",
"image/jpeg",
"image/jxl",
"image/jxr",
"image/jp2",
"image/jpm",
"image/jpx",
"image/mj2",

at this time .png files above 16000 pixels in height do not upload to endchan successfully, even when the .png files are smaller than 5MB

high-pixel .png files can contain much useful information in a high-quality and easy-to-share format

Клиника «Трезвый Шаг Раменское» выстраивает помощь так, чтобы пациент и его близкие не метались между разными службами и частными «специалистами», а получали комплекс услуг в одном месте. Это особенно важно для тех, кто уже сталкивался с провалами после разовых кодировок, неподходящих капельниц или формальной «помощи».
Получить дополнительную информацию - http://narkologicheskaya-klinika-ramenskoe10.ru/chastnaya-narkologicheskaya-klinika-v-ramenskom/

Why are people allowed to have a thread solely dedicated to stalking, harrassing, and doxxing a currently underage girl on /agatha2/, while those who call out such behaviour are banned under false pretenses?

How about to implement a cross-board reference support? It can make a huge shift towards the justification of tension between competing boards.
For example, if we have a board with schizo moderation, name it board1 and its competing board with free posting, named board2, then a user gets banned on board1 for nothing, and so one can not dispute the ban, but still can post on board2, and then he/she posts a reply to board1 post in board2 thread, referenced as >>/board1/post_id and then this is reflected in board1 post xrefs. Then, interesting outcomes can follow. For example, people from board1 can see there is a reply link on another board. And a moderator of board2 has no options to ban this reply from being shown in reply's list, so there is a next dramatic dilemma for schizo moderator - to ban a poster, who is replied to, or just to 'OK' with it and see people leaving to board2 where the freedom of speech persists. This can bring a huge balancing effect.

On Rizon IRC someone registered the username Shiban while I was asleep. Anything he writes there isn't coming from me. Please ingore it for further notice.
Thank you for your attention to this matter.