The rule is same as the previous one.
User #1: I wish for an access to Plants vs. Zombies Adventures Beta
User #2: Granted, but your facebook account gets disabled due to requesting an access with angry comments.
User #1: I wish I have a voltblade like this ---->>>>
User #2: Granted, but it's too heavy so you can't wield it.
To make it like the forum one:
If the comment is 0, make a comment, then all person replies it. If there's a second comment above the first comment, it must be deleted.
For explanation, I am the first person that comment. Other people must keep replying it.