But just make sure that they are authentic posters not trolls or banned ones.
The fruits of their posts will speak for themselves just like the ones like "Story for Christians" Do not respond to mocking besides Scripture. If their purpose is not to learn but to mock, DO NOT get in to any argument.
I am strictly watching Muslim & Christian Discussion forum and I know who is who, posting from where, I DO NOT tolerate trolls. Interestingly there is no traffic in Muslim & Christian discussion lately but everything going on Quran & Bible debate...
DO NOT FEED THE TROLLS guys...