Some forums may lead to fitnah between the sexes
Question

                In some Islamic forums there is a section for amusement. It normally contains funny and rare issues. Its aim is to amuse the members. It is run by good brothers and sisters, we think they are good and Allah knows best.  

We noticed in some forums, especially in this section, that men and women started to mix together and use expressions like “ha ha ha” and “may Allah please you”. In addition to some funny pictures that does not oppose Islam like children in funny situations or pictures of the nature that contain some funny aspect, and using the expressional faces (emotions) in titles and replies. Also the kind of subjects they discuss together, we think that it can open a door of fitnah. 

We suggest some limits to be ruled on forums, especially this amusing section. We suggest that it should be only for brothers, not sisters, although the sisters will be able to read all was typed on this section, but will not be able to share or reply. Knowing that there is no ways we can know if the participant is a brother or a sister, as we do not have but the name. 

Is there any way by which we can control this section in forums? Whether by allowing only specific subjects, or specific replies on these subjects, or by making it for only one sex? Knowing that everyone will be able to read what is written in this section even the unregistered guests.  

Is there any specific subjects you suggest that are Islamic and at the same time achieving the aim of this section which is amusing these good brothers and sisters. Or it is better if we just block this section if it is a door of fitnah? What do you advise us to do?.
Praise be to Allah.Most of what happens in so 
    called amusement forums is carelessness and a lack of control over posts and 
    comments, because both men and women participate in these forums. This is 
    undoubtedly a door to fitnah, so people may be impressed or attracted, then 
    try to get in touch via e-mail and the like. Hence we think that this door 
    should be closed, and the amusement forum should be restricted to men, and 
    another forum should be set up for women only for the same purpose, if there 
    is a need for that. 
If a man tricks the 
    participants in the forum and enters as if he is a woman (or vice versa), 
    then the sin of that lie is borne by him alone. There is no sin on you, in 
    sha Allaah, so long as you have announced clearly that it is not allowed for 
    women to take part in the men’s forums or for men to take part in the 
    women’s forums. 
And Allaah knows best.