Conversion of Text to Its Hexadecimal Values
The text obfuscator turns normal text into its HTML-escaped formats. Usually, this is only used for Unicode characters that aren't represented in ASCII (such as ʃ, made by ʃ). However, this works for normal letters, like A-Z. The idea is that mass e-mail harvesters can't understand this, so your e-mail can be protected but still shown normally.