They have their uses, but the ambiguity can really divide a fanbase as your character might not be the correct character in the eyes of the creator should they ever decide to get rid of that ambiguity. See, Other M. (Just as an example, please don't let this become a discussion about Other M.)
Valve touched on this issue humorously in Portal 2. It was pretty refreshing to see a developer poke fun at themselves.
Personally, I'm not a fan of silent protagonists. In general, at least. I prefer more fleshed out characters as I never really see myself as the protagonist. I see the character. My friends, when describing a game, speak in the first person when referring to the character. I speak in the third.
Valve touched on this issue humorously in Portal 2. It was pretty refreshing to see a developer poke fun at themselves.
Personally, I'm not a fan of silent protagonists. In general, at least. I prefer more fleshed out characters as I never really see myself as the protagonist. I see the character. My friends, when describing a game, speak in the first person when referring to the character. I speak in the third.