Should or shouldn't topics be discussed

My intent was to ask why a post (not mine) was locked. Then I decided to read the rules and came across the following:

"Inappropriate Discussions

Moderators will be looking for topics discussing: Religion Sex Politics Any social issues, though some exceptions may be appropriate (e.g., internet legislation)"

I realize that these topics can and maybe often descend into chaotic ranting and locking a thread that is out of control is good sense.

But listing the above as inappropriate topics, especially if and only if, good discussion is happening (I feel heated discussions are fine so long as they're not derogatory) is a little puzzling.

If we as a community want to have a discussion about social issues and post to in the general board, I think it should be allowed.

The post I read and originally read alluded to was about in game sexism. Most of the posts were discussion worthy but it was shut down citing this rule.

I'm not questioning the mod who locked it, they were well within their right to do so.

I'm questioning why the board in general are afraid to allow its members to start a discussion about "Any Social Issue".

I've made a few posts about suicide both in regards to in game and even posts that were not related to the in game experience. None of those were locked and certainly I'd count that as a social issue.

And being part of a very large online community we should embrace healthy, lively, and even heated discussions of "Social issues".

At the very least we will read different perspectives and that's a good thing even if we disagree with poster's opinions.

And mods should lock posts that descend into derogatory mudslinging no doubt. But we should not have such a broad rule that limits the ability to create posts on social issues.

Just my two cents though.