Template talk:Mods
From The Utopian Encyclopedia
"Otherwise" seems to be a generally useless category. Most "otherwise" values are either 1 or blank, I've only seen 1 "otherwise" value that was anything different (0) which implies that "otherwise" really just complicates things by saying "does the mod LOWER or RAISE the condition"
Easier than having 1's and 0's all over the place is to simply make the mod value positive or negative.