My purpose is to work out if Lemmy is social media, and solidify my position on it through debating (arguing) with people about it, I'm afraid I'm using you for my own ends 😉.

My point about calling lemmy Wikipedia is like calling cereal soup. I agree, because if we widen this definition to include Lemmy, we start having justifications for calling things that clearly aren't social media, social media.

My ideal is that we just have old style Internet platforms in their own box called forums. And social media can continue on its way with phone number verification, blue check marks, and whatever else goes on.

I suppose the actually productive thought process is to think why we need to differentiate sites from each other like this, and come up with a definition that has function without being confusing. I'd argue the endless debate and confusion around this topic, especially on Reddit, for years and years, indicates a poor definition.