Indeed, it really seems to depend on the tone of the game. I'm not one for monologuing as a player (As a Dungeon Master its a little different, but then again that's part of the job description), so Ill rarely end up being dramatic save in response to others. With Kntoran's game that has unfortunately ended up with several posts of mine that are embarassingly sparse, as the only thing to respond to lately has been the repetitive need for skill checks.
I don't think I've ever experienced something like this. For me its all the opposite with players being short lived with their character entries. I wouldn't like the idea of someone going on and on if it wasn't necessary.
I think it depends on the type of game. There are role plays that encourage melodrama but it has to appeal to everyone or no one will enjoy it.
I've never encountered this but I will like to experience it sometime because I'm more of the lingering drama sort when playing *wink* Most of the players in my group want to move on really fast.
There are those on this site that would probably accuse me of this! Perhaps I occasionally enjoy the role play aspect too much.
Comments: Its very good if there is an end point but its not very good if you're just being melodramatic to emphasize your character over others. Some players by nature seek a lot of attention and channel that through their characters.