Yes.
It's something that seems hard to believe until it happens to yourself. People are extremely skeptical, with good reason; I was too, until I was banned on my main account. Wich had never touched a bot.
There are other reports around, but you'll need to make some diggin; then, there are people who considers that, if something never happened to them, it can't happen. Most people. Most people also believe in religion, that makes them feel better.
I remember reading fpsware lately on the ban forums. An ex-community dev, adored by most people in this forum and with the utmost reputation. He had his entire battlenet wiped clean, where 3 accounts where botting and the others didn't, at all.
Of course, it might be easier to you to think you are completely safe, and live blindfolded. It's up to you, that information is here( in this forum) if you wanna spend time looking for it.