Is this an "April Fools" joke?

[torexplorer]

Whats with this banner on the site:

"Serious Exlax" - The Exlax Enthusiast Forum.

I'm a little scared to enter it. Can I assume that it's an "April Fools" joke?

 

[Burns]

check it out in the everything under the sun forum.

There is a topic about this there.