thanks for posting and helping us test it all out! we are still fine-tuning what works in posts. i think all html tags will be ignored. we want to keep it simple.
i am working on a very simple way of "quoting" text, since i think it is a useful thing, but it wont be much more than not wrapping text with ">" in front of it, or something like that.
Any Day Now, i will have some kinda help system in place for crazy sito beta. look for fun help icons towards that end.