Bug: when I tried to transfer money from the system to myself, userid 1, it failed.
And hence the problem for what you have defined as the 'system' transferring money is using userid 1
The 'system' needs to not use a userid...
I had to put myself into a private usergroup that only I was assigned, for it to work... which is mute, as that renders the entire function as useless if an admin needs to pay themselves for something.
Maybe he has just been busy? I am sure he will get around to fixing the bugs/issues.
Could also be his homepage is set to here, and once the web opens, he has to go elsewhere, so it shows him online for the next 15 minutes.... lots of different things could be going on. Let's not break out the torches and pitchforks just yet.
I know I have sent PM's to developers or about other add-ons, and never got a reply either... surely you can understand.