Until he updates the game. He can say it until he's blue in the face, but it's been over a year. People have every right to question it IMO.
Don't get me wrong, I'd be happier if we got an update today, too, but I think that Komi has shown that both quantity and quality come when we wait. They're active here, they assure us they're making good progress, I have no reason to doubt them. If the timeframe makes you doubt, that's your prerogative.
However, my comment wasn't about the questioning so much as it was about the lack of checking recent posts. People often ask "is it abandoned" on the same page where the Dev has stated "no, it isn't". I don't remember if it was this thread, but I remember seeing it as an immediate post after a Dev has said that.