There a difference between freedom of speech and not agreeing with other people.
If you have a board like Backstage where there is massive moderation and posts are deleted and there are very strict rules, there's less of a chance anyone will deviate from the norm.
Here, there's little moderation.
Anyone can say just about anything, just about anyway they want to.
So, if you're going to post on a board that allows you to post anything you want you have to be prepared to see people respond to that post anyway they choose. That's freedom of speech.

As for someone with a lame moderator status actually going into my posts and editing words, well... that's just children playing games.