I think "countless" is exaggerating slightly but you would expect to see some of that on an Apple enthusiasts forum. If you look at traditional watch forums, the Apple Watch and smartwatches in general still attract a high level of contempt, which I again you would also expect to see.
You also hear of many people buying the Apple Watch (and other smartwatches) and quickly losing interest and abandoning them, indeed my second hand bargain priced Apple Watch SS was purchased from such a person. I continue to see them as a niche product which is still finding it's way and it's going to be interesting to see how they develop over the next few years.
While they are definitley winning on functionality, I still think they are lagging behind when it comes to style and choice of design. There are a lot of people who refuse to buy the Apple Watch because they hate the shape of it's case so I think that's an area which can be addressed.
250 Plus comments of forum members primarily abandoning their mechanical Watches seems the majority are appreciating the Apple Watch more than they anticipated. Yes, it's a forum designated for those interested in the Apple Watch, but none the less, I lost count of those who have stated they switched for various reasons, hence countless.
Anyways, the Apple Watch is a superfluous item. Some try justify their purchase for why they want the Watch, rather it be fitness, notifications or both. I think the Apple Watch is merely a convenience factor and a fitness tracker. Either way, it does it well. I think the future for the Apple Watch is unwritten, but for now, it has a lot of potential to improve.
You mentioned the design of the Watch. First, the Apple Watch needs time to evolve. Take the first iPhone for example, it was thick and bulky. But over time, it evolved into what it is today. Same can be said for the Apple Watch, It needs time to conform and evolve. We just saw a slightly revamped version four months ago. Labeling the Apple Watch 'Ugly' is subjective, just as any other opinion with other Apple devices could be said.
I think when a major overhaul does occur, we will see a thinner casing, perhaps a round variant, larger Watch face, additional color Options, micro-led has been rumored. Apple executed the band switching perfectly, which customization is a major selling point as well.
Allowing the Apple Watch to mature is something should be considered before others say its "Hated" or a failure. It's to early to determine its future, but again, room for improvement is Always expected, but it's headed in the right direction for the time being.