I don't pretend to know all the technical differences between UA delivery and IP cloaking. However, is it fair to say that Google boots the UA delivery pages mistakenly? Can UA delivery be used to "spam" them, I guess is what I'm asking.
Rather than say that UA delivery is cloaking, if these pages are getting mistakenly booted, you are correct that people should be warned about using these techniques. Not because they are spam (and possibly not even cloaking) but because they can be mistakenly booted. Is there any way to prevent those pages from being mistakenly booted? Or do we simply have to wait for the search engines to become more sophisticated.
Because you're right, I wouldn't want people to think it's fine to use those methods, and that the search engines are fine with it, if that's not the case. But the engines don't think it's "spam," right? It's just getting caught up in spam "filters" because the methods are similar to "spam"?
I'm learning more about this as we go along, so forgive me if my questions sound simplistic to you.