Moshe Rose is right, many of the blogs do specalize in loshon hora. YWN Coffee room’s mods do a good job of filtering that out.
However, I do believe that a side benefit to blogs that are not monitored is the fact that people who are victims can see that they are not alone, and even if they do not seek help, there is some solace in knowing that you’re not alone.
If you’ve never been a victim (doesnt matter what kind of abuse, they all hurt) then you cannot really know what it feels like to think that you’re the only one who’s been thru the problem. Being able to talk (or listen) to the story of others helps somewhat.
Another plus is that would be (or active) agressors think twice before acting on their impulse. No, it does not solve the problem, but if it cutails it by 10 or 20%, that’s 10 or 20% less pain. Again, nothing condones loshon horah, but try telling that to a victim.
And if you think I’m making this up, think again. (v’hamaven, yovin)