Malign,

This is your blog, but you can put some words in your title to warn others of "possible triggers," "warning may trigger some," or "read with caution possible triggering information."

If you are worried about responsibility of someone being triggered by your blog..just make your title stand out, and maybe in the first sentences post another warning, and then the reading person has the decision to continue reading or leaving.

I agree with Flow's suggestions. The main concern is to ensure that posts with depictions of self-harm or harm to others are tagged appropriately with some variation of [Trigger!]. This enables other members who are vulnerable and wish to avoid such posts to safely navigate this site. Should anyone come across threads and posts which contain such depictions without a warning tag, please put up a thread in the Feedback forum with a link to the thread so that an administrator or moderator can modify the title.