Technical Details

Global Styles
I wanted to ensure that making character and word list tables was as easy as possible, so I made a small change to the MediaWiki:Wikia.css file. I put the following code in this page:

What the above code does is make sure word list/character list tables have certain column widths, and that the first two columns have text that is 1.5 times larger than the usual text size.

To turn a table into a word list table, make sure you add the "wordlist" class to the wiki markup. For example:

To turn a table into a character list table, make sure you add the "characterlist" class to the wiki markup. For example:

See Doraemon Color Collection Word List for an example of how it's done.

JavaScript
I have modified the MediaWiki:Wikia.js page to implement a button on word list pages that can be used to display the entire word list in tab-delimited plain text format.

However, the button does not automatically appear on each word list page; you must add a small snippet of code.

See Yotsuba Word List to see an example of how this is done. Make sure to click the "Source" button in the upper-right hand corner of the editor, or else you won't see the snippet.