As it is written in the descpription of this forum (just on the front page)
This forum is also the place to discuss other chess GUIs, databases, tools, chess in general...
It has been written there from day one of this forum. There is one restriction: if you found an obvious bug in a software other than Winboard/Xboard or in a program whose author is regularly writing here it might be a better idea to contact the author or the support of that software directly.
Regards
Volker