The following text, when put into CuteEditor, strips the style tags (and leaves the style info). I assume this is because EnableStripStyleTagsCodeInjection is set to true. But there is nothing executable or malicious in the styles:

 

blah, blah, blah...

<DIV dir=ltr align=left><SPAN class=187181814-13052010><FONT color=#0000ff
face="Century Gothic">Yes again, Lisa said the credit was mailed just a couple
days ago.
<STYLE>A.psl {
 COLOR: #4e81c4; TEXT-DECORATION: none
}
A:hover {
 TEXT-DECORATION: underline
}
A.psl:hover {
 COLOR: #999999
}
.noro {
 FONT-FAMILY: Verdana,Arial,fixed; COLOR: #4e81c4; FONT-SIZE: 12pt
}
.tiny {
 FONT-SIZE: 1pt
}
.logotext {
 FONT-FAMILY: Verdana,Arial,fixed; COLOR: #ffffff; FONT-SIZE: 10pt; TEXT-DECORATION: none
}
A.brand {
 FONT-FAMILY: Verdana,Arial,fixed; COLOR: #ffffff; FONT-SIZE: 8pt; TEXT-DECORATION: underline
}
</STYLE>
</FONT></SPAN></DIV><BR>

blah, blah, blah