Sounds like you stumbled into DGT!! It can really bring out a lot more from a tobacco when you do it to the right one.
It works with some tobaccos very well. Next time you do it, blow some warm air through the pipe to re-moisturize the tobacco and get the foul vapors out before lighting. That makes a huge difference.
Many of the greatest pleasures in life are illegal, immoral, or smelly.