Depending on their TOS, I wouldn't last 5 min in a forum like that. If I create a topic and decide to track it, I at least need to know where it moved to. Sometimes the "why" can be logical and obvious, but in cases where it's not, I'd hope to get a response from the mods if I asked about it. Also, I get why they'd need to keep a forum as hostile-free as possible. Let's be honest, people can say and do really questionable things on the internet, but the way the moderation of hostile-free is being done (or at least gauging from how you're describing it, OP) is incredibly ironic, as in being extra careful towards hostile posts puts users under the impression the mods are the hostile ones. Kind of an interesting scenario, really.
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I don't seek to be popular
I seek to be well-known
If we find a friendship that's forged without masks
Then I have done my job