Bridging protocols is a way of mediating the #geekproblem here is a thread on this thinking Lets talk about the protocol wars
Interesting issue you bring up with the confusern this might bring when people don’t cooperate (and yes they don’t) when people run 2 bridges and bridge twice
Pragmatically, instances can mediate this by blocking bridge instances that dont “cooperate” and host duplicates - would be nice to have some social mod/admin coding for this.