Have you ever looked at a big Wikipedia article of the "Comparison of ..." variety, seen its many huge tables, and despaired? Well, now your despair is about to be lessened somewhat.

This userscript:

• gathers all rows of all tables on a wiki page
• joins them on the first column (which is usually the name of whatever it is that's being compared)
• puts it all in a huge table at the top of the page
• and allows you to filter what columns you want to see
• as well as write complex logical expressions to filter rows!

See the readme on GitHub for more details on the filtering expressions.

After you've installed the script, you can try it out on e. g. this page. Look for the button just above the page title.