User blog comment:XScar/Tense Used on Dead Character Pages/@comment-48285-20120812215240

I think we should keep it all present. Aside from the spoiler which you brought up, I think that changing it would cause some inconsistencies (maybe later on when the manga starts up again and more people die, their character page might not get edited to past tense) and, going along with that, people might forget that the character is dead and not edit or just don't feel like editing the character page.

Might not be the best reasons, but they are something to take into account.