Lol, I've seen just today Spam using the german "Umlaute" as a means to bypass Spam filters. <img src="/ubbthreads/images/graemlins/biggrin.gif" alt="" /> I think, this might work in countries not used to them quite well. <img src="/ubbthreads/images/graemlins/badsmile2.gif" alt="" />
Here is a sample :
Any Mëds gräntëd without päpërs nëedëd
It really sounds hilarious, being correctly spoken with the german Umlaute. <img src="/ubbthreads/images/graemlins/biggrin.gif" alt="" />