That would solve the problem about not getting high, but cannabutter still tastes pretty bad. That's why it's usually hidden in baked goods with stronger flavors like chocolate.
Not really, if you do it properly there is almost 0 taste difference.
After infusing the butter and filtering it through a cheesecloth or coffee filter you have to put it in a pot of boiling water, use at least 5 times more water than cannabutter. Stir it thoroughly for a few minutes, then let it first cool down to room temperature and then put it in the fridge. Since THC is only soluble in fat but not water it will stay inside the butter, but much of the plant material like chlorophyll is water soluble and will get dissolved in the water during this process. In the fridge the butter will solidify on top of the water and you can remove it from the water to have your clarified butter that tastes almost like regular butter