I didn't wear a suit, but in 2012 I wore slacks, tucked in collared shirt, and a tie, and got the same response from Microsoft. It was for an internship which is hilarious.

I interviewed elsewhere and one other time I wore an Oxford. I passed the university interview but the hiring manager told me for the on campus interview to not wear that again, or I'll stick out too much. I wore a plain T-shirt and have been happily employed for 10 years here :)