I would really like an option to limit the number of characters in TextLine and TextArea input types. Preferably, this would include a counter, showing the editor how many characters that are left - á la Twitter.
We see that editors too often write too long and/or too complicated texts in fields not suited to long texts, and it would be a great if the editor could indicate visually that this is the case.
This was also requested in 2015: Maximum length of TextLine or TextArea