They don't often notice the strikes inside, the station takes MMOD hits daily.

Just looking at some data- SpaceX dragon 1, missions CRS-1 - CRS-17 spent a total of 410 days exposed at ISS. In those days it collected a total of 246 MMOD impacts. That's an impact on average every 40hrs.Or even worse, the MPLMs in 10 missions with almost 70 exposed days collected 398 impacts. Some of which completely penetrated the hull.