Would you care to elaborate? I've been buying almost exclusively from Malta-based sellers, is anything going on?
People with "Chinese" (sounding) names buying up rather unusual big amounts of specific parts on ebay.
Payments usually done from overseas, but shipping mostly to addresses in Europe like Germany, though not always.
The shipping-address they use f.e. in DE are from several rather obscure import/export-companies and/or courier-services, which seem to deal mostly in/with cars and (real or fake) cosmetics, medications, etc. These companies all linked to one another and owned & operated exclusively by a bunch of Koreans. Could be legal, could be a little (il)legal, could be linked to Mafia or Triads.
Or maybe "Rocket Man" is a huge Playmo-collector too