Anonymous 02/23/2021 (Tue) 21:03:36 No.11540 del
Write it in a txt document, then copypaste it.
That is an input element, supposedly the default length is 524288 characters, but I advise to keep it as short as possible.
Maybe you can post here your problem and we'll see what can we do about it.
Also if you need to give a longer explanation, you could post it on the board what you use, so the users could discuss if your point is valid, if the thread should be removed or not.
On global level, only global rules matter, what you can find on the home page of Endchan.