Board Thread:The Scriptorium/@comment-25254585-20140802231732/@comment-24150802-20140803005106

From a conversation with Deilann (his words paraphrased):

Stats should be capitalised (Strength, Intelligence, Constitution, Perception). It's normal for a game to capitalise its stats because Strength as a stat is clearly different than strength as a common noun. Of course, it should only be capitalised if it's referencing that stat. So if we're talking about something being "the major strength of a class", that shouldn't be capitalised.

The same thing probably applies to class names (use Healer not healer). The official blog is inconsistent about that, but it does use capitals in special cases such as "become a Snowflake Healer".