I used to be a loyal subscriber to Linux Journal and would await every issue. Then I started getting junk mail from (if memory serves me) ACM. When I pressed them about it they revealed that they'd gotten my physical address from Linux Journal.

I cancelled my subscription and never picked up another copy.

I can't help wonder how many other people got annoyed at that kind of behaviour given the cross over between Linux and Privacy.

Note: I'll still mourn it's loss because it had a huge impact on my teenage years.