a. "...just because you're not the type of person who wishes to show a bit of consideration to the other members of this community." That sounds like a personal attack to me. I think anyone would take it that way.
b. No, it isn't a virtual world. That's a place where imaginary things happen. It's a virtual world only for a few sad souls who post stories about personal tragedies that later turn out to be pure invention. But those are a minority. For the rest, the posts are a true reflection of daily life. The MN community is a real world, and is full of posts about things that many would find upsetting. That's life. Every time I power up my computer it takes me automatically to a page on Yahoo.com where headlines of just the kind you are objecting to are plainly visible. (I've just looked: "Toddler stabbed to death" is the fourth headline.) I don't go there looking for the news, but this is the internet, and it would be an unhealthy place if it didn't reflect the real world. People who are upset by such headlines shouldn't use the internet at all.
c. I didn't support anyone's "right" to post upsetting thread titles. Drawing a parallel with newspaper headlines had nothing to do with rights, and everything to do with what is common practice in the real world. And it doesn't just apply to tabloids either, if you want to suggest that it's just journalistic vulgarity. Respectable broadsheets do the same thing. "Hundreds die in Hurricane", "Family murdered in knife attack", etc. Those headlines in respectable newspapers accurately summarise tragic events. Why should thread titles on MN be any different?
d. "why would someone need to summarise what is contained in a thread in the most tabloid of fashions?" Ah, you do think it's just journalistic vulgarity!
e. There's no need to read a sinister meaning into the word "censor". To keep certain things out of your posts or your thread titles, for any reason, is to censor. People can do that, or not, as they choose. But you can't expect them to do it. My position is not absurd at all.