I keep getting teary about it too. I've lost close friends and family, and have had a few losses recently, so this is hitting me hard. Normally a 'celeb' shuffling off their mortal coil may make me pause for a few mins, but I'm still shedding salty blobs for STP.
I have to keep bookmarking the thread and leaving it because I'm at home on my own with DD and she is too young to understand. It feels as though I've lost another friend/parent.
I've been a fan of STP for many, many years and treasure the autographed book a friend got for me. Barely a day goes by where I can't find an appropriate quote to apply. As an ecologist, much of what he says applies to 'deep ecology', to physics/quantum and the Gaia theory.
At the moment, I'm in the midst of writing my dissertation. I am determined to get a discworld quote in.