So be it. You can still mock their shit either way.
Fun fact, most of them are going to look even shittier than on Wikia, mostly because the mass majority of the people running them know fuck all about how to actually do anything aside from basic uploading and page editing, and even though Miraheze allows even more admin control over how features work, so expect busted templates, horrible layouts, and stunning incompetence because most of the people doing the transplants won't have Wikia to hold their hands anymore doing the tech shit.
For example:
animatedfeet.miraheze.org
Apparently, these morons are moving pages BY HAND (and doing it via one big XML dump would be a much saner idea for copyright and technical reasons), and apparently are too fucking lazy to find a simple download script to core dump all the images from the wiki so it can be transplanted to the new one (which, again, is not that hard to do, I know of a few that would work great for this).