OK, #5 seems to be fixed. Posting from IE8, and copy/paste to SSMS 2008R2 preserves line breaks for me.

In terms of #s 1 and 2, we have some ideas, and we'll test.

#3, SSMS uses the same color, so despite the fact I think it's hard to read, I don't think we want to change.

In terms of #4, this isn't clear to our staff. Can you elaborate?