At no point in that writeup does Honey say they use cookie stuffing to fraudulently steal affiliate attribution when no discount code is found. This is a serious crime: people have gone to prison for cookie stuffing affiliate codes (see: https://www.justice.gov/usao-sdal/pr/cookie-stuffing-interne...)

Google removes chrome extensions cookie stuffing affiliate codes: https://www.zdnet.com/article/google-removes-two-chrome-ad-b...