Quote Originally Posted by Risvertasashi View Post
There are actually programming languages (perl and it's accompanying regular expressions mainly comes to mine) that allow for approximate matches (i.e. if it's just an extra space or changed letter it still matches), recognize that '0' can also be 'o' and other such common substitutions.
SE already does this, as we can see how well it works. Thats why there are so many variations in the spam messages.