User blog comment:HELO/Le-WHY-athan/@comment-4950455-20120908055305

Honestly, I think most of the questions about the Leviathans' actions can be answered just by looking at their nature: they're lazy and extraordinarily arrogant, both of which are fairly justified by their history. I also think everyone I've seen commenting on it seems to overestimate how able they are to take down Reapers - we don't know exactly what creating that pulse takes, nor how frequently they can use it.

The real plot hole I found Leviathan to open up is in Shepard & Co's reaction to its revelations... or rather, the lack thereof. It doesn't really bother me that much overall - particularly as I expected something like it to crop up - but it's nonetheless annoying and hard to explain.