I realize it's common for people to sometimes mess up and forget to use spoiler tags. However, on the current issue of Alpha, one user, DarkPrime0, has blatantly refused to use the spoiler warning box and has gone as far as to call people stupid for reading the comments when there might be spoilers.
If there was not a spoiler alert, I might be inclined to agree that it's best not to read the comments without being completely up to date on the manga. But I assumed that since the spoiler warnings do exist, their purpose was to enable people who haven't read the chapters to enjoy the comments without being spoiled. So when someone blatantly refuses to use them as the creators of the site intended, I find it extremely stubborn and inconsiderate, and I hope there will be some action taken to prevent things like this.