getafix, but what if that D ally goes ALL d for you as well!??
(as is the case with ebert and his ally RR)

the only case where the above makes sense to me is if a D ally has basically 0 D, is doubled by 'the leecher's' D, and the leecher loses a ton of turrets from protecting numerous attacks on his undefended ally.
even then if you do the math though, it's grossly unequal.
for example - if in that case, say the tech leecher loses 200k turrets for defending his ally over the set. that's about 20 million - 30million $$ worth.
the tech gained from the leach would FAR FAR FAR exceed this measly 20-30 million $

in fact it would be well over a few hundred million on a good tech set!!! even on a bad set it is way way more than 30 million. trust me!!

in the case of ebert, he is not only getting free tech, he also has a player that is giving him free D. taht is running a D heavy strat, with no intention of finishing well, only to play turns as they come and to give ebert as much D from allies as humanly possible