once i saw a guy run a pentest and a box was doing that. it printed an entire vulnerabilityscanner output verbatim all the bytes received o.O guy appearently got handed like 100m of paper with a request to pls not scan _that_ port :'D

some people had these setups and just never saw a lot of traffic because the boxes werent broadly routed on the internet etc. or internal.

now with all the scans and automated spamming by parties its totally unthinkable. most of my server bandwidth despite my efforts is going to this.. (thankfully down pay for that per bytes anymore!)