This instance is not trade free anymore unfortunately. It injects ads at the end of every call…to buy pro subscriptions to their pro stuff.
They link to their pages on trade-based networks (facebook, linkedin, twitter), to trade-based collaborative software (slack) and to trade-based app stores (Google Play and App Store from Apple) because they have an app for phones. uBlock origin also blocked “amplitude.com” which is a “Product Intelligence platform helping companies build better products”. These things are not that bad, but I want to mention them, because else it’s a great service! You don’t need an account or pay money or so. You can just use it directly in the browser. Do they collect data? Yes, but not to make a business out of that: “8×8 is not in the business of selling personal information to third parties. 8×8 uses this information to deliver the meet.jit.si service, to identify and troubleshoot problems with the meet.jit.si service, and to improve the meet.jit.si service. In addition, 8×8 may use this information to investigate fraud or abuse.” (https://jitsi.org/meet-jit-si-privacy/) So I’d give them 4/5 blocks.