Using the more conventional > mark, like email does, prevents this problem.... and they can be "stacked"
Example;
>>Clinton is a Bozo (original post)
>I agree (first reply)
But his wife is worse (new reply)
Yes, but there is one thing FReepers are not and that is they are not lazy.
All the tags most will probably ever need on FR:
One blank line between paragraphs. The corresponding </P> is not necessary.