It's not a sure fire way to model. True you can erase the history, but if you look at the hypergraph and graph the inputs and outputs of the object you will see that Maya still considers it a boolean object and it keeps the info. This causes a whole lot of trouble when you want to rigg something and animate it. It's kinda like painted rust. It's looks good on the outside and gets the job done but underneath it's just a big ol' mess. My teacher's gave me a hard time about this when I first started using maya. It's not professional. Just trying to pass on some good advice.