You read that incorrectly, he states 0.1% of users has an issue per day, which is equivalent to 1 query every 3 years from 100% or your users (3 times 365 times

You read that incorrectly, he states 0.1% of users has an issue per day, which is equivalent to 1 query every 3 years from 100% or your users (3 times 365 times 0.1% is a bit more than 100%).