There is a limit on the about of text you can put in this box - endorsed by the maxlength="2000" in HTML. 

There is also a limit that triggers error "cd57ab4d7b77a131ed3deb441bd93dcd" when the server sees that the string length is greater than 2000.

You would think that they would be the same, but they are not due to the amount of data required to encode characters. maxlength counts the number of characters, while strlen() is actual data passed. So if you include a "Smart Quote" it takes double the space of a normal quote.

$ echo '"' &gt; double-quote.txt
$ echo '&ldquo;' &gt; double-curley-quote.txt

$ ls -altr double-curley-quote.txt double-quote.txt | awk '{print $NF, $5}'
double-quote.txt 2
double-curley-quote.txt 4
-rw-rw-r--. 1 ken ken 4 Jul  6 15:23 double-curley-quote.txt
-rw-rw-r--. 1 ken ken 2 Jul  6 15:23 double-quote.txt

For a good overview on why this is please see "Characters, Symbols and the Unicode Miracle - Computerphile" by Tom Scott on https://www.youtube.com/watch?v=MijmeoH9LT4