Tankstelle is not a name

Tankstelle is German for petrol station and not a name. There are a couple of other questionable entries like "Freie Tankstelle" (which is a petrol station not associated with a chain) and "Raiffeisenbank" which is a chain of banks, defintely not known for operating petrol stations. I've left those in, but  IMHO the list should support correct tagging and naming not the opposite.