It seems to me your take on the matter follows the myth that more traffic is better. IMHO this is deeply flawed, focusing on quantity, as in increase traffic, and missing the part where you qualify traffic.

Less traffic but of better quality is an actual improvement, more traffic of unknown quality could be an improvement or not, maybe those additional people are bouncing.

What is a certainty though is that your web server consume more resources and bandwidth due to traffic increase, and now you may have to refactor and optimize or pay to upgrade your hardware/hosting.