None of what you've mentioned there could be interpreted as theft though (unless certain features were only unlockable in paid for versions of free apps and we provided instructions on how to unlock)?
Without getting in to the finer legalities of it, to tether wirelessly, the majority of carriers state you need to be on a specific plan and those plans cost money. Therefore WiFi tethering if you don't have a specific plan means you're getting a paid service for free. Whichever way you look at it, that's equivalent to theft. Regardless of whether or not you think it's right or wrong, we can't be seen to be endorsing that sort of thing unfortunately.
As ALP has stated, it's a relatively new rule and we're doing our hardest to ensure that the user base knows why this is the stance we've taken.