Chord symbol playback enabled for one user not enabled by another
Because chord symbol playback is currently tied (among other things) to a program preference, this means a user may enable it, heard playback the way he wants, then share his score with another - or on musescore.com, once its back end is updated - and the playback won't be heard. Conversely, one user might have it disabled and implement his own playback for chords, then share the score with others who will suddenly start hearing the builtin playback too. So, I think we need to reconsider whether there should be a program-wide preference for this. One can already control playback of chord symbols by toggling the Play property (and optionally using "Set as style").
On top of that, I think having chord symbol playback disabled by default means the feature will remain undiscovered by many, which is unfortunate. I'd rather have people wonder how to turn it it off than not know it exists at all.
To me, this is an issue we need to solve before release. I've held off on saying too much about this so far as I was hoping for more feedback on forums etc and didn't want to bias things too much with my own opinions. But I guess it's time now.
That's a description of the problem. I have some ideas on solutions, but I'll discuss those separately in the comments.