why in the edit post page is the link labeled edit aliases?

... a fuck-up.  

The change from multiple alias to single alias was done neatly 5 years ago, but not all the wording in the rules or guidelines or editing were updated.

When you want to change your alias, you have to hit contact us and tell them you want to change it. They will delete your alias, then you can create a new one. You can only change it every three months.

and click on some of the topics, the author of a few is still "FoxyFuckPants," who hasn't been around for nearly five years either.