Comment by hnlmorg

That was literally what I said:

> Which would make sense for the era of quake when Ethernet wasn’t yet ubiquitous.

Also token ring was just one of a few different network protocols that supported BNC. Technically you could run Ethernet 10base2 over BNC too (In fact I used to have network cards that supported this, though I only used them for 10baseT).

TR was definitely the more common protocol for BNC hardware though.