Yelluw: Not to belabour the point, but you may have misunderstood the etiquette which prevails on this board, and most others which I have seen. Typing in all caps is considered the equivalent of yelling, or picking a fight. As already mentioned you also managed to convey a tone of not respecting others' opinions. Don't know if that's what you actually intended, but that's how it came across.
If you check this thread and others you will see that there is a range of opinions posted about the Opera House, as with several other topics. Differing opinions make for a more interesting discussion. I have found that differing opinions are almost always respected here, unless they are obviously unreasonable or backed up with no evidence.
I hope you will continue to post your opinions, which would be as valid as anyone else's. If you can keep it respectful, I can't see how anyone here would have a problem.