There is a tutorial with list of variables written by Luky on Forumotion (click here), but have you wanted to remove variables?

First navigate to Administration panel -> General -> Censoring and click on Word censoring.

Click on

Add new word

In Word : type a variable.
Here's list of variables: http://help.forumotion.com/tricks-tips-f32/list-of-variables-t48637.htm

For Replacement : type in something that you would like to appear instead of a variable. For example, write [We are censuring variables].
Then click on Submit button and we're done!
This tutorial has been originally written by Dumbledore27 for Forumotion Help Forum. All rights reserved!
We have censured Username code! Right, [We are censoring Username code]? Comments appreciated!

Nice tut

It was originally written for Forumotion. It was forwarded to Luky, hopefully he'll approve it and if I understood it correctly, posting a tutorial gets you credits for your forum!

Nice tutorial.

Very nice tut

Thank you.

Cool tutorial. Well done