I mean he had all the opportunity for selling Sync for reddit and take profit. I converted to Sync nearly 7 years ago when I bought their ad free version called Sync Pro. He made great improvements adding material ui and lots of desirable features for an already great app. From my POV he didn't abandon the app, gave updates till the last day of its existence and was a great dev in general who was active in his sub listening to our queries . Maybe the people who knew him from those days are the ones who is supporting him now.