After seeing too many threads derailed by boris - why the hell did the Star Wars HD thread turn into verbal diarrhoea about Jurassic Park and LOTR? - I've had to start running this again. I recommend other people who feel the same do too.
Follow the above instructions but use this line in the "Matching Expression" box:
<table border="0" cellpadding="1" cellspacing="0" width="97%">*<b>boris</b>[br]*<img src="i/dominant/trans.gif" border="0" height="2" width="1">[br]
You might want to up the byte limit.
Guaranteed to clean away 99% of the technical misinformation/bullshitting posted to this site.