Just becuase LP removed this from the question portion does not mean you can't transfer miles through HH. LP may not want to draw attention to this.

I question why most people would want to do this in the first place? Washing miles through HH will cost you roughly 50% of your miles--a very steep price. If you transfer miles to a different program (through HH) just becuase you do not want to fly on any of the LP lines or partners then why did you partake in the program in the first place? There are very few places on this planet that are not served by TWA/KLM/US Air and the LP airlines. If enough people try to do this it could threaten the program.