Can there posts without any rating?

https://ponybooru.org/search?q=_21safe2C___21suggestive2C___{21questionable}2C___21explicit2C___{21semi-grimdark}2C___21grimdark2C__%21grotesque
 
I mean, yes. Here it got even removed by a mod:  
https://ponybooru.org/images/79091
 
But normally that should not be possible, right?

@Kirito  
Huh. Maybe it was a special case.

huh, not sure how that happened. Well I fixed it regardless