What other software do you use?

I have yet to try it, what is it that makes you like it?

 

The software is mainly focus on threads, not messing up by showing categories and forums, etc...
I have think about this kind of forum script before, and I have made a search and found this software and then I'm in love with it, Simple Forum PHP (http://www.simpleforumphp.com/), also tried to make a clone for free.

 

Right now I use Zetaboards. I was a big fan of Invisionfree, and obviously my taste has changed with the developers of the network.

I think it's a great piece of software that provides plenty of fantastic features, easy to theme and most of all I don't have to worry about hosting and backup routines.