I figured that the tabs for the bosses could use some more detail, so I created the "Weaknesses" & "Resistances" tabs in the boss page of the Wiki, & I'm sure some of you don't mind me doing so, but from some reason, they don't seem to appear in the boss tabs. I don't know how the editors can add in tabs to enemy tabs, so if anybody can fix that, that would be fine.
I also did a few changes there, too, so I hope you don't mind about these, either.
As far as I understand, there are two issues. First, you added markup like |weaknesses= to the Monster entries on the Boss page, but you didn't fill in any values. For example, for the Snarbolax you want to fill in weaknesses=piercing, right?
The second (and more important) issue is that the Monster template is not set up to handle weaknesses and resistances fields. When using MediaWiki templates, you can't just add whatever you want to a templated entry. The template has to be designed to handle that information. To see how it's currently designed, visit Template:Monster.
So maybe we should have a discussion about whether Template:Monster should include weaknesses and resistances. I'm not sure what I think. Here's what I've come up with.
Pros: Each monster would be labeled with its weaknesses and resistances, so that players could see them quickly. This is especially valuable for weird cases like Vanaduke.
Cons: Except in weird cases like Vanaduke, weaknesses and resistances are determined by monster family. So for example all monsters on the Slime page will have exactly the same weaknesses and resistances. Keeping redundant copies of the same information makes the wiki harder to maintain. Also it is bad for educating new players, because they may miss the point about monster family.