I worked on 10Base2 as well in the mid to late 90s and it was a pain. The terminators, the length restrictions, the repeaters… no hubs but it was hell, one section damaged the whole thing goes down. 10mbit limit to the entire combined throughput. Need more? Add another card to the server… want to talk from one loop to another? Watch server cpu
I made a good living in the 90s going to orgs with "network problems" and fixing things. One of the most common problems was a coax ethernet network that had outgrown itself.
The fix was installing a 10bT/100bTX switch, installing 100bTX NICs in the servers, and breaking up their 10b2/10b5 networks into smaller segments each with media converter connecting it to the switch. An unmanaged 16/24-port 10/100 switch was "only" a couple hundred bucks back then.
