I absolutely detest tracking links and deliberately avoid clicking them and seeking out the "offers" directly in my browser, avoiding any campaign tracking. Also, links to third party domains that claim to be acting for the first party (usually for customer surveys); why not have a single and properly used domain name for all your /work/ for the domain / service in question??? Decades ago I purchased WinZip, fully paid for, today I still get spam emails from them even though I have long since discontinued use of WinZip completely and I recommend against people buying WinZip or any of the product offers from them. They use a different domain name for tracking of their emails, different enough that I didn't know if it was trust-able, so I emailed them... they did confirm the other domain name was theirs too... the only positive is that they do their own tracking (or appear to be), but their tracking links are also plain old http too. Most tracking is done via third parties and the tracking links are an awful abuse of user privacy.