We apologize for the instability of composr.app and appreciate your patience. We are working on the statistics addon and trying to find an optimal way to store and render data. Unfortunately, we have yet to find a solution that can handle the traffic (and therefore, tens of millions of statistical records) of composr.app. We're working hard on one.
#2401 - May be wise to force disable WYSIWYG on system command events
Alternate solution (on top of my earlier tweaks): I've just hidden this event type for new events, unless a config option is flipped. Nobody uses it anyway, it's very much for power users.
I have made it so on editing a system event WYSIWYG is disabled.
This should deal with the bulk of it.