Email subject lines

I learned somewhere that a lot of internet advertising is tailored to the reader - whether it decides which ads to display to you based on your internet history or your personal preferences on certain websites, etc.

I wonder if spam is sent the same way. I get the generic emails asking me to buy cheap drugs or viagra, but lately I'm getting more fake pharmaceutical company emails. Since I deal with pharmaceutical companies on a semi-regular basis at work, I wonder if somehow someone caught on and is trying to lure me with emails from Pfizer, etc.

I don't know what the point I'm trying to make is, but I have to admit, I was very amused by today's spam with the subject line of "Mass geek suicide." If spam is sent in a manner meant to deliberately pique your interest, I wonder what this email said about me...