The one that finally pushed me over the edge was, while i could (barely) tolerate the ads, some time after his last update, something in the code broke or wasnt updated, and the ads would play an audible blip, as if the first 5ms of audio played before it was then caught and automatically muted - and that was just a bridge too far. There were smaller things and features unimplemnted - but having to hear blips catching me off guard and at times when scrolling is appropriate but audio wasnt was too frustrating for me and so i switched. Was using sync forever, was a true fan, was frustrated how he changed and milked the pay structure for sync for lemmy as conpared to how he did it for reddit, and then he had the gal to just dip entirely, such a shame for such a good ux.