On the post editor, there is an redundant symbol.

[qiancsff]

On the post editor, there is an redundant symbol. [发帖的编辑器上，有个多余的符号

[Xyphyn]

I did not make the Chinese translation, so you can fix it on the weblate:

https://weblate.xylight.dev

[sevonj]

On the post editor, there is an redundant symbol.

The arrow is not pointing at a symbol. It's the handle of the resizable text box. See https://developer.mozilla.org/en-US/docs/Web/CSS/resize

It's not very usable on mobile. What if the box resized itself automatically to fit content? I was also going to file another bug about resizing: it resets when previewing. Auto-size would take care of that too.

[qiancsff]

I did not make the Chinese translation, so you can fix it on the weblate:

https://weblate.xylight.dev

Simplified Chinese translation completed 中文简体已翻译完成

[Xyphyn]

That symbol is the resize handle, it is up to your browser to handle that. you'll notice it in other places, too, like github: