Hmm. As someone who never faked one(1!) hour in his life I must say that I had already some interviews where they had a very good look at my logbooks. Had to bring all of them on 2 occasions, both european operators I must add.
I remember my QR interview and they did NOT check my last logbook at all. So, not entirely true, at least for some operators. But I have heard about guys faking hours, but it did not help them at all. Airlines expect experience from you, so, if you overdo the "faking" thing they will catch you eventually(missing command experience, missing widebody experience, etc.).