Saw this on the side of my screen today:
As our way of thanking you for your positive contributions to Slashdot, you are eligible to disable advertising.
Lovely :-)

I decided to tell slashdot how grateful I am to be able to do this, and why I will not actually do it, but could not find any email contact ... hopefully someone in charge will get the message below

To Slashdot
As my way of thanking slashdot for the free news service, and allowing me to read and partake in various discussions, I won't be disabling advertisements on slashdot. I will, however, read each one I see and attempt to make purchases if an advertisement is for a product I want.