[Zero Tolerance]

This should fix the problem, find inside functions_bbcodeparse.php:

PHP Code:

$searcharray = array("/([!]*)/si", "/([?]*)/si", "/([~]*)/si"); 


Replace With:

PHP Code:

$searcharray = array("/([!]+)/si", "/([?]+)/si", "/([~]+)/si"); 


Save & Upload.

After testing the string:

OMG!!!!!!1!!!!!1~~~~~~~~~~1~~~~~~~~~~~~~~?????!!!? ????!!!

The output was:

OMG!1!1~1~?!?!

Eliminating all repeating characters (?, ~, !) to a single char.

- Zero Tolerance