Why do things that are important to the advertiser trump what's important to the user? I don't care how hard it is for you to track the performance of your ad sources, I just want you to stop tracking me.

Because without ads we're not profitable so there would be no service?

You can't just buy a domain, put your service out there, and expect it to gain traction. Advertising that you actually exist is essential for any service, but especially so for smaller businesses and startups.