>>6
Just test ALT + 0173 in different fields. Experiment on /b/; threads don't last long there anyway.
http://img367.imageshack.us/img367/5130/howtosineptn6.png
^ Above there is a link to a screenshot of the Windows character map showing you how to "SINEP". (PENIS typed backwards, but it retains the wordfilter background color) Simply, you goto Start ---> run ---> and type "charmap" into the run box, (or if you're using Vista, Windows logo button ---> Search ---> type "charmap" into the field.) check "Advanced view", make sure the character set is selected as Unicode from the drop-down menu, type under "go to Unicode" field, "202E". Basically everything you did should look as in the screenshot above; hit select, hit copy, then paste onto the comment field, if everything worked, you should be able to type PENIS normally and it will come out as "SINEP", then after you post it should work with the wordfilter background color intact.
Note: this also works for "VAGINA" as "ANIGAV" and "BUTTSEX" as "XESTTUB".
Post info being backwards, (i.e. Name field and date/time/post count.) are a bit more complicated to perform, but work in the same vein.