This site (Stack Exchange family of sites) is here for its users. Without users, these sites will not have any activity (OK, I'm done stating the bleeding obvious).
So why is deleted content totally inaccessible? (unless you're a 10k user, which frankly requires too much of a heavy time commitment to get to on all sites). Sometimes you are following a curiosity, like the question someone got a reversal badge for, and you're met with this brick wall:
That sucks. I want to know what he got the reversal badge for! Why do you even have reversal badges then? Reversal is: "Provided answer of +20 score to a question of -5 score". But due to moderator behavior, a question of -5 score is almost certainly doomed to deletion. So what is the point of having a badge that is almost always going to end up in dead links?
Deleted questions should have the same interface as closed questions. You can't interact with the page at all, but you can view its contents.
I realize I am beating a dead pony here, but deleting things that have received any positive attention (in terms of votes - in questions or in the response area) should not be the case.