It's more that soliciting information hazards seems like really odd behaviour. Even if no-one sends you an Interactive Suicide Rock, you might still receive some horrible or annoying stuff you don't want to be carrying around in your head.
I'm really interested to find out what, if anything, people send you, but I'm not sure I want to know exactly what they are.
The Motif of Harmful Sensation is a common fictional trope, but of real-life examples there are pretty much 0. (Excepting e.g. a subject with given mental susceptibilities such as depression or OCD.)
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Of course, for "every Monday", the last one should have been dated July 22-28. *cough*