User blog:0123456789 The Great/Why "Miranda Warning"

Speaking of the comment section, it is generaly thought that it is a free place to post anything that (abide by FANDOM's rule), and I'll confirm that you are absolutely right.

However, all of you should have noticed the glaring "You have the right to remain silent" atop every pages' comment section, and on the Comment Policy page itself. This is also my doing.

So why?
While the comment section is open to all, despite the policy. The message is put there to serve as a final reminder to everyone before they will post anything.

Every article comments are treated as "contributions" to the wiki; they will show up in Special:Contributions and Special:WikiActivity. Even if they are deleted, they are logged and stil visible to Admins and Content Mods. With this, people are strongly advided to think throughly about what they are about to post, since it stays forever.

Another point is the concern of dramatic situations. While very rare, article comments can turn into a chat conflict just because someone said something unpleasant. As the one responsible for this idea, I say that the warning is put mostly for this concern.

TLDR
Think twice before you post. You have the right to remain silent.