I'm sure others have tried this, but I've never done it myself. I've got all these old Silhouette SD blades lying around, and I thought - what if I cranked it down to the smallest cut setting, and used it to cut rather than score? "Scoring" to the Silhouette means perforate, and it is terribly slow. Cutting seems much faster.
I tried it out on a 6" tile, and it worked perfectly. Now, I realize for reverse scoring, it isn't going to work too well. So, what I'll do is use this on the tiles (and posts, for example) to reduce the amount of perforating that goes on. Aesthetically, I don't mind it either way, but anything that saves me time (and makes less noise) is a good thing.
UPDATE: A word of caution... I've been cutting tiles out with this method, and I like it a lot. The edges are clean and easy to edge, and it seems a LOT faster than letting the machine perforate. However, I've apparently been forgetting to switch the blades between cutting and scoring, using the cutting blade for everything. It's still doing an OK job just scoring and not going through the tile, probably because I've got it set on the lowest pressure possible, but I'm a little worried that it's cutting deeper than necessary and making some of the corners weaker.... If you try this yourself, don't be lazy like me!