Quick aside on quoting posts with links embedded:
If you just select/highlight the part of the post you want to quote, and click the grey "quote" button that appears, you will grab only the visible text that you've highlighted - and the board may not quite know how to parse that.
If, instead, you click the "Reply" button at the bottom right of the post you want to quote, the editor will open with the full text of the post you're replying to - including any html code that makes Onebox quotes look pretty. Then, if you don't want to quote the whole post, you can just delete the parts you don't want.
Also, as some have noted, copying Twitter links doesn't seem to work the way it used to. There is a workaround - I'm not sure why this works, but if you add a question mark followed by the letter a at the end of the link code (e.g., add "?a"), the board will then parse the link into a pretty Onebox.
Now back to your regular discussion... ")