It is entirely dependent on the partners as [@Inkarnate] noted. I have experienced the same level of literacy and competency on Discord roleplays as I have on the forum or better in a few select cases. This is the exact reason brought up that one can simply write multiple paragraphs and post them back to back; nothing is lost. Unless of course the server [i]is[/i] of the rapid fire "Free" roleplaying style, at which point one is getting exactly what they paid for, conceptually at least.

Speaking on that type of example, I am notorious for being verbose and wordy, even in chat service responses. Players in the past who wrote very minor responses, when the service was hosted on the forum itself and it had a fair amount more actual roleplaying taking place, would generally wait long enough for a response to be issued. Certain formalities evolved, such as ending on going posts with a dash to show they continued, and that the matter of length was never really an issue. That variety and disparity of posting talent never was problematic either, for if anything, observation indicated to me the more I invested, the more they did in return, and the phenomena existed with others too.

So to bring this back to the head of the matter, it is clear that which matters is not the service itself but the members involved. I simply do not buy into the notion that forum roleplaying is somehow superior inherently. What forum topics do afford by contrast is time; the sense of urgency is diminished because in a chat roleplay one stands to "lose their turn", so to speak. This too is faster to come as more members are involved. It takes a gentleman's agreement to ensure that people do not reply [i]too[/i] much to the chat and that they actively make motions to acknowledge the actions and events of other players.

There is a trend here, I would note, and that trend would be the one that emphasizes the importance of choosing good members, not so much a "good" or even "bad" medium.