It's both. Gittip is 'laundering' the money, so that it's clean on the other side. It's not the greatest money laundering scheme as the launderer is unwitting, and therefore can 'flip' exposing the source of the ill-gotten gains.
Negative. The layering stage of ML does indeed lead to "cleaning" funds, but Gittip isn't doing that. ML means giving money a clean-slate with virtually no history. Everything from casinos, offshore entities, to wiring funds through FATF blacklisted countries will be closer to what ML actually is.
