I have a terrible gauge for what's reasonable.
I feel like this is a setup for the punchline "and that's why I was able to create Stacker News." Building a fully functional site with the features it has from the ground up seems like something that would have daunted reasonable people.
I think the best possible scenario for bitcoin is it's severely and progressively attacked and we anticipate and adapt to survive it. The worst possible scenario is bitcoin isn't attacked, becomes ubiquitous, and is only then attacked and more people suffer a loss from it.
This makes sense, and it's an interesting conundrum. BTC needs to be attacked severely to thrive, but we also don't want attacks that fully succeed, either. Sort of like the carnival game where you have to roll the bowling ball hard enough to get over a hump, but if it's just a bit too hard, it ends up where you started.