Since the haters are immature kids and vote down any logical comment that defends the game, and vote up any insult to the creators or people who like the game, i guess there's no point trying to defend the game.
I wouldn't mind if they gave an opinion, but only a few are trying the game for fun. The rest are just playing for a badge, and get mad because they have to play a tutorial for a game that they will stop playing in a day, and because they have to play for about an hour just to get the badge, so they rate it 1/5.
I don't know who started saying it, but you don't need coins. The only thing they're good for is VIP and cosmetic items. You can also get coins from selling unbound items.
The top 3 reasons this game is rated badly: #3: "I'm too impatient to follow a 5-minute tutorial, so I'll exaggerate and complain." #2: "My cheap old laptop can't load the game!" #1: "I came just to get the badge and be an ass because the badge was hard to get."
A bunch of people got excited over a measly medium badge, and the sudden rush of people broke the server. Now a bunch of kids are rating it 1/5 because they broke it.