Yup, he's not a black hole, per se, but he isn't exactly lighting it up, which is what some people have attempted to lead others to believe. I was simply getting a few things out there before we thought of Gonzo as an offensive weapon, which he isn't, the OBP is not good at all, even with this being one of his best offensive stretches.
I think there are two main points that have been discussed, that is: We need an upgrade for the future, like you say he's not a long-term replacement. Hardy is the tops of the list IMO. And the other point, which is totally off-topic, but has come to surface is: his batting average is, for one, NOT .290 for the season, and even if it was, his OBP sucks, it's horrendous.
I'm all in for keeping him there for the remainder of the games, he's by far the best we have right now, but I'd upgrade to Hardy ASAP