I must say that the statements in this review are factually wrong. At the time the review was written, the sigplus demo site was running under Joomla 1.5.21. As for support, it comes primarily in the form of very extensive documentation. For instance, the list of error messages (including the quoted message) and explanation for each is found on the page . However, you must agree that it would be quite absurd if free support were available for helping you in a project you otherwise get paid for when you could find a solution to your problem in the documentation. Even while the extension is for free, developer time is not. We are always happy to answer questions not covered by the documentation and assist in non-commercial projects as time allows.
Before I try Kunena, I installed some others free forum components. I admit that Kunena is the best far from the others. Great layout, looks like the forums we are all used to and not just like a sloppy layout. Easy to use just install and everything works out of the box. I could even find my language (Greek) in some forums with (almost) everything translated.
If you look for a free forum component do not look any further. This is the right for you. It is very well developed.
I highly support all the free extensions but I would like to have the option to remove the "With the support of Kunena". After all if someone sees the layout he would definitely know it is Kunena made.
I will change some thing in next version.
Thank you for your feedback