Honestly? This is a question on hacker news? There are millions of ways to access a site via another site. W3C validator comes to mind. Or textmirror.net. Or browsershots.org. Or the Google cache. Or or or...
How is asking someone to paste it any less of a solution than any of those?
They would be able to view it instantly instead of waiting for people to bother posting it on Pastebin
For the first person. For some subsequent people, it'll be faster because they can avoid discovering it's blocked.
Then there might also be more comments so it would take longer to find it, might as well just copy the link and paste it into a proxy.
To be honest, putting it on pastebin took me less time than writing a cynical response would have taken me.