I think it can be really fun not knowing about other characters, as long as everyone properly introduces their characters in their first posts ^^. Seeing other char sheets has its benefits, mainly avoiding making two of the same type of character, but it's worth it in my opinion as it's more fun to find out what a character is capable of throughout the RP. Knowing what other people are playing ´before my character meets them kind of takes away from the experience, in my opinion ^^.