Only ever in the latest status update where he said "My energy levels have been low since I had the main surgery but it's improving."
Although I don't think it(maybe I'm coping) I personally don't see anything wrong with someone thinking WWG is milking. We were at 93% over 5 months ago. I don't see how it's unreasonable to think WWG is milking or has been shady around communication when he's only shared this info after the fact and we only have his word. Even believing him knowing that he knew the work rate would be slowed so much and him sitting on it till the last minute is pretty fucked.
What's weird is that I don't think he's milking either, I feel like that's just too much of a departure from what I've expected/seen from him him, but by that same token I think anyone familiar with his modus operandi agrees he's moving hella shifty, regardless of our opinions on why.
The way I see it we have two main possibilities and a third fairly unlikely one;
1. He wrote himself into a corner. Whether it's because he got ambitious and included scenes/animations he only had partial ideas to write for/fit into the story or he got very near completion and realized there were big enough plot-holes to make him dislike it enough to stall for months(In 1-2 month variables where he could end it sooner or later if he thought of a solution). He might be so attached to the game he's just overthinking/rabbit-holing ATP and he definitely wouldn't be the first Dev to do so(Though he is the first major dev I've seen have this much of a stall in a few years).
2. He's nearing either a personal milestone or issue, needs the money from this to stay steady until then and thinks saying too much will make people back out(It would, most likely). He thought he'd hit his goal/etc by April, realized he wouldn't sometime in March and started panic-spiraling and not knowing what to do about it so chose the option that would piss people off but not turn too many entirely while also giving him the option to end the delay while having to explain as little as possible(Out of anxiety, shame, stubbornness, whatever). I don't consider this milking because if it's big enough of a personal issue to warrant doing this it's super easy to make the argument it'd effect his life enough for it to hamper/cripple the game itself.
3. He's never completely believed it'd be out when he hinted it would be and is doing the most to stall as long as can before reaching a point of no return such as being marked as abandoned here which coincidentally lines up with the and of his second delay. I really heavily doubt this possibility not only for my own sanity's sake but because A) it doesn't line up with what he's done/said in the past whatsoever. And B) There are many ways he could've done so much more effectively.
In any case he very clearly knows what he's doing is shitty and he's doing it anyway so I have to hope/believe it's for a good reason. I would say I get where he's coming from but I don't because he hasn't told us. He's too far gone into whatever is happening to back out or back down so we'll all just have to tune in next month(Fingers crossed) to find out(Or not. Probably not) if he makes it