That is pretty much the Internet in General.
I wouldn't say that. It's a conclave of like-minded folks creates such a space.
Let's take RPGnet for example. Its moderators cracked down a lot on transphobic and sexist discussion, much to the chagrin of a lot of "free speech" folks, conservatives, and Men's Rights folks in the table-top community.
A sister site to RPGnet was made as a "free speech haven" where you won't get banned for being a bigot, a jerk, or otherwise holding repellent views (in theory). I'd rather not say their name and thus give them publicity and traffic, but ever since it's become dominated by the worst voices in tabletop. People who think that inclusivity in games is a sign of cultural Marxism, that putting LGBT people in an adventure path is political correctness run amok, etc.
And the sad part of it all is that several of their more prominent members have a following, especially among the "old-school D&D" crowd. Self-publishers advertise on their message board, people send complimentary copies of their books to the mod team to review, basically treating them with legitimacy.
If one were to go on Paizo or RPGnet and have a discussion about inclusivity and gender issues in games, you'd get a far different discussion than if you did the same thing than several other communities, including EN World which is the closest thing tabletop has to a news site.