I can smell them like at a 1m distance. They smell bad. The first time I realized what they smell like, I took a bite of a muffin that I left on the counter. I tasted the muffin and another bad flavor so I looked and it had ants. From that moment I could smell them, not because I couldn’t smell them before but because now I knew what they smelled like.
For large companies that serve many customers 5K per year is a drop in a bucket. If it provides their customers with a more secure experience, it is worth it.