Can we make the edit preview look like the actual result.
The only conceivable reason for not allowing certain options is to make it more simple, but it only creates a headache and makes it less simple/intuitive when the preview doesn't look like the result.
This is less important but I also wish that ctrl+b and ctrl+i were used for formatting, because its usage of * means that you can't use those symbols for their own sake.
I expect that the answer would be that it's part of the "language" (an explanation I don't understand because I don't code), but surely it isn't something they couldn't easily fix through some means, given all that they can do?