You don't necessarily need to make the post in order to use it. You make your first roll, link it in the post. If you don't like it, add that you are using the 3rd Excellency to the post, make and link second roll, choose which one you want. I don't see the trouble with that. See Sanguine's post.But the whole point of the third excellency is that you don't know in advance if you want to use it or not. You use it after you see that your first roll sucked. There's plenty of other such late stage charms IIRC.
A fair enough point. I realized after posting my explanation of the Excellencies that I had changed in my brain the way rolls would be made; sorry about the confusion. If you want to make rolls yourself, do so as long as you link to either the particular roll you made (as with Invisible Castle) or to the site where searches can be made (as with Nox). If anyone prefers that I handle their rolling, I will be happy to do so.I don't see how you rolling for everyone is a good idea considering mechanics like this. There's plenty of online rollers that let you check that all the rolls people do are genuine, there's even one that works great somewhere on this board.
Edit: Sorry that I can be all over the place. I'm in the middle of my finals at the moment, so I've been rather scatterbrained After this week it shouldn't be so bad.