Take a closer look at that workshop:
http://steamcommunity.com/id/heliosarma/myworkshopfiles/?appid=107410
Now let's take a look at the top:
http://steamcommunity.com/workshop/browse/?appid=107410&actualsort=toprated&browsesort=toprated
It's kinda occupied buy this guy's works. Are they really so splendid?
His highest rated scenario for now, 5th top rated submission ever:
http://steamcommunity.com/sharedfiles/filedetails/?id=271443653
About 7,500 subscribers, not bad. 24 comments and half of them writed by author. That's strange.
This is next top rated submission, made by not him:
http://steamcommunity.com/sharedfiles/filedetails/?id=333310405
About 15,500 subscribers, wow. 248 comments. I can believe in this.
Now let's take a look at on one of his latest scenario:
http://steamcommunity.com/sharedfiles/filedetails/?id=332036783
605 rates, well that's even higher than Road's End which is one of the highest quality scenario I've ever saw in Arma 3.
1288 subscribers, that's mean that half of them rated this scenario. My scenario Ground Attack II has 26,500 subscribers and 457 rates, that mean that only one of 60 subscribers rated it.
8 comments against 470 comments at Road's End.
He spent about 1000 hours in Arma, that's mean he made every scenario in less than 20 hours. Just WOW.
It's a kind of magic, like Freddie said.