IIRC Cloudflare is the only registrar that doesn’t mark up from wholesale prices, or something like that. Basically makes them cheaper than most other registrars. I think the point is that they can then sell you their other (related) services more easily — the services that actually make them money.
You were so close: Edinburgh only got its name after Edward I invaded Scotland in 1296. Before that it (which was then a larger area than the present Edinburgh) had just been called “the Burgh”, which depending on regional variation would have been pronounced either “burg” or “boro”. “Edinburgh” referred to a smaller area within the Burgh that the king’s guards would patrol more severely due to the perceived increased risk of rebellion due to higher population density.
(/joke)