Yes, which is sort of my point, of course things didn't start this way. No trademark means no trademark policy, after all. And more to the point, there was def

Yes, which is sort of my point, of course things didn't start this way. No trademark means no trademark policy, after all. And more to the point, there was definitely a first time that an open source project instituted a trademark policy that says "You can use this name for unofficial events as long as it's clear its not official, but you must adhere to these additional rules when doing so." This sits somewhere between more and less restrictive trademark and brand policies that either allow it for a certain use case without much other consideration or disallow it without permission without much other consideration. It's hard to know exactly when it would even be considered enforceable, since referring to something by its name is usually not a violation of trademark in any case.