I asked in Global tonight if there was an achievement/badge for investigating tombstones, and the answer is apparently "no" but several folks thought it was a good idea and that I should post it here, so I am.
Optionally, those with Penpersonship could graffiti (or, "Write Epitaph") on a tombstone and leave a note? Could make investigating tombstones fun, if we're gonna do it to receive a badge/unlock an achievement, right?