Both.
They were off-topic. The fact that the authors of those posts kept writing the off-topic posts clearly annoyed other forum members, otherwise they wouldn’t have flagged them. Removing posts which violate our rules hardly counts as censorship.
Please read the FAQ again, and try to understand the message there. The second chapter already states “Please treat this discussion forum with the same respect you would a public park. We, too, are a shared community resource — a place to share skills, knowledge and interests through ongoing conversation.”
You are free to share your opinions here. You are doing it right now. However, when people are discussing things, it’s not good behaviour to go and shout your opinions about off-topic matters in the middle of the discussions. Each thread in this forum is about a single topic.
Let me repeat this: The topic which included those hidden posts was about bugs in Xperia 10 II. Those hidden posts were not about that topic. You are free to repeat those posts in threads which are relevant to them.