Years ago I did, but then everyone caught on and blogs started popping up all over the place. I think if I was going to suggest it now I would make sure that you're able to "spin" the content before it's published, which will make it appear to be unique, but then again, it needs to be readable and google isn't dumb, they know of this trick so I'm not even sure it would work anymore.
I got a few unused domain's I plan on throwing up a few more autoblog's on. One is a playstation 4 .net domain and the other is related to game making. So on the game making, I am going to put feeds of indie based browser game's news/update's to show my support of start up game's. ;-)
Nope, I haven't. I haven't given them much time to try, but at this point, I'm not going to either. I don't think it's a good idea when Google is cracking down on duplicate and low quality content so much.