Freegle seems to be a thing in the UK, but not so much in other tribes of the world. They use google-analytics and some trackers, but they seem honest and recommend a privacy blocker:

We use Google Analytics to collect traffic statistics. This is configured in a way that means it does not require consent. We have a data processing agreement with Google, we have enabled IP anonymization/masking, disabled data sharing, and are not using any other google services in combination with Google Analytics.

We use Google and Facebook’s code to allow you to log in. They store a few third-party cookies, of their own, but before you’ve logged in they don’t know who you are. If you are concerned about these, you can install a privacy blocker such as Ghostery and still use the site. (https://www.ilovefreegle.org/privacy)

But then they use things like “adview.online” and I personally find things like these: https://www.directory.trade-free.org/wp-content/uploads/2020/11/Pasted.jpg and https://www.directory.trade-free.org/wp-content/uploads/2020/11/Pasted-1.jpg not so trade-free. Basically, they should remove these facebook and google trackers and instead use openstreetmap or so.