And I absolutely love spending an hour deleting a flood of auto-genetated e-mails from my inbox every month or hunting for that tiny low saturation "unsubscribe" link (which sometimes doesn't work/exist at all).
The worst offenders are the airlines and travel agencies IMO. I mean I understand getting monthly e-mails from places like amazon where there's a multitude of unrelated things to buy, but how many airplane tickets can I realistically buy?