Whistle...you really aren't doing yourself any favours here.
Let me explain a bit...see, in the past, various people for reasons best known only to themselves have attempted to sign up here using dummy accounts, or 'socks'. Their one purpose appears to be to disrupt, start fights and just generally make arses of themselves.
Had you already been here a few weeks and actually taken part in other discussions, your posts thus far may have been treated differently. The fact that you have joined and immediately appear to be antagonising people (whether or not you actually mean to) is going to make your stay here a little difficult, even if you did now wish to stay with us.
If you can clarify exactly what you feel we have done thus far to make you feel unwelcome, perhaps we can discuss it in an adult manner and come to some sensible resolution. Otherwise, we're just going to go round and round in circles. Trust me on this one...unfortunately, we've done it here many, many times before.
Bats post was a bit tongue in cheek, which you may have picked up on if you had been here for a bit. He meant no offence. Generally speaking, we're all very relaxed here and that's just kind of how we talk to each other.
So, in answer to your question, no. Freedom of speech is most certainly not a taboo subject here. If you stick around, you will see just that for yourself. That this forum is still here at all really is testament to the fact that we aren't the kind of place where you can't talk about certain things. What we will not tolerate as a community however, is racism, bigotry and general arseness. Even then, no one person here would exert any kind of restrictions upon you without a consensus from all who care to partake.
We really are very nice. Take your coat off and have a brew.