This thread has drifted a bit from the narrow topic of how to message another member to more generic critique of the new
TF software system.
To be clear, I was not involved with either the evaluation, decision, or implementation of the new forum software. I will simply provide some insights from a Mod and user perspective that might help explain some of the Why's...
TF is only one of many Social Knowledge Forums and there are others much larger. As such we tend to ride the bus vs drive it.
Members and mods have requested & suggested many changes over recent years. Some were quick & easy and got implemented quickly, others were more complicated and were held for the replacement of our older and outdated forum software.
I can only guess but have to believe SK and our Admins would not and did not "invent" the forum software and develop the code that drives the forum and its features. Instead they chose an existing, available system and tailored the graphics and features to best resemble our TF Forum while incorporating the "improvements" / features that were available by moving to a new system.
I can't disagree that the difference between PMs and Conversations is semantics. Realize that some platforms use different terms to mean essentially the same thing... Personal Msg, Direct Msg, Instant Msg being an excellent example... why call them different names? I will guess that if one platform used identical terms for features they would be charged with patent / copyright infringement and forced to cease & decist.
I don't mean to argue with any of the sentiments expressed about the new system... only to present some perspectives to consider.
In the world of technology change is inevitable and WE get to decide how WE respond... some are early adopters... some are slower and take time to figure things out... others refuse and check out as they are unable to accept and adapt to change.
An excellent book on dealing with the very challenge of change is "Who Moved My Cheese?" By Specer Johnson is summarized well with this 12 min You Tube video... which type of individual are you? When faced with change.