Often being able to change something that bothers one is very empowering. And that is a worthwhile activity. Just because one isn't bringing about world peace doesn't mean that deciding to fix something one thinks is wrong is somehow petty!
I do think that language matters. How we say things matter. I prefer the name to describe the intent, so for me Women's Forum works.
The reason I don't mind having a forum dedicated to women's issues is that while many women can feel comfortable talking with men and discussing personal issues with men, not all women do. There are also many women who can feel attacked by ridiculing statements and if those statements happen to be made by men it can feel doubly threatening.