A service that has a non zero operating expense (which is, pretty much everyone) cannot survive if there is no revenue from users to support that OPEX (IT/cloud costs, dev pay, etc).

You need recurrent money to run the business. It comes from ads/tracking/data and/or from subscriptions. Some business want to protect your privacy by not tracking you or serve you ads, so you should expect a non zero recurrent cost.

It can be extremely small, but it needs to be there to be profitable: the business has to cover its costs somehow, or it won't last.

> I already have enough things I have to pay for every month for the rest of my life.

So does this business to provide a service to you, for as long as you remain a customer.