Wiki page used to look fine, now it looks strange
Your wiki page looked just fine, then you made a small change, and now it looks terrible, right? And this is the first time you've edited this page for a while, say since before September 2010?
We made a change to update our Textile parsing to a newer version. In 99% of cases it's better, but sometimes it breaks existing pages. To deal with this, there is an option in your campaign advanced settings to downgrade back to Textile 3.
Note! After changing this setting, you will need to re-save the wiki page for the change to work.