Good differentiation Krusten plus in my opinion once you give your description you leave it to the rest of us to imagine how your character is for ourselves. I've read where some players try to tell you how your character should interact with their character because of their description and for me that's [kind of] selfish.
That's quite an interesting topic! My opinion here is not that for example Dungeons & Dragons (Etc.) is not a game fit for melodrama, but that it's pure luck whether or not the GM and the players will be looking for the exact same entertainment.
I've ran games for about 3 years now, and in these years, it has come to my attention that one of the first priorities of the GM is to observe the players' reactions to events, their attention span in different situations, and general interests. Doing your best to adapt seems to be the key in solving most problems of this nature.
What happens when a player just gets too melodramatic, and you don't like it? Well, we have all been there, and if you haven't been there as a GM yet, you will be, sooner or later!
As with any other issue, the question is: Do you adapt, or not? My only solution thus far is to semi-adapt during the session, and after it's over, meet the player alone (Maybe even on a separate day), and explain to him what you believe was inappropriate for the adventure.
But then again Krusten, that falls onto personal appeal and opinion. I'd rather spend 6 hours of game time on my gaming table interacting with a single NPC than skip things.
Being melodramatic is not in any way same as dramatic or just a person who likes to RP every situation.
As for the Play By Post part of the conversation, I haven't played that much Play By Post to have a proper opinion. But I guess since Play By Post games tend to be much slower, spending too much time on a single interaction can drag things out a tad.
All in all, remember, it falls onto personal opinion, whether or not you like being melodramatic or not, as for any other thing. I think it is best to have a talk with your players, and getting to know them before starting a game, in order to know what they'd be interested in, as well as letting them know what you prefer in your game as well.
This is of course inapplicable in the Play By Post games, since you can't truly interact with others; so you'll just have to be lucky! ...
Johnathan, did you even read my first post? In my first post I said clearly what I'm talking about,
I understand what you mean. I agree with you. I don't think anyone cares about how your character feels, unless it's a short phrase included with your other actions, that shows visual clues to others. Such as: "My character sighs in disappointment".
Sorry if I didn't stay on topic.