I'd be cautious with this.
I have tried scoring for multiple <br> and also for more than ten closing </div> in a row, but unless you score very low, you'll get false positives. Unfortunately some legitimate software products translate their native format into HTML with ugly code like that. It could be that a meta of multiple <br> plus something else gets a more accurate spam diagnosis, so I'm not saying it's useless, but it is not as straightforward as it seems. Joseph Brennan Columbia University Information Technology