Re: Why bother keeping Aikido 'pure'?
I personally like to put Tobasco (tm) on everything, so I have no driving impetus to keep anything pure, much less my aikido. It's really impure, if that's what people want to know. I might apologize for that, but it's hella-effective, and I don't have to hurt people (defined as actually cause damage that lasts beyond the pain flare), so I am happy with it.
For my inspiration in training, I look to the old masters, who literally all seemed to go out and learn from a broad range of instructors and styles and even modes of thought to come up with what they taught. Ueshiba, Kano, Oyama, Lee, Geis, and now my own folks who I respect, Lowry, Williams, etc. All go out and seek, and take what works for them and which they can understand, and "fit" those thoughts and principles and techniques into their "world view" of aikido and it's all good. My $0.02.