I did a search and didn't find this topic.
How about adding a tab in the chat box for Services. Trade is for buy/sell. All/local is for general chat. A tab for services offered like running/power leveling, etc., would help keep local chat cleared of people looking for or offering services.
Services Tab
Perkunas
MithranArkanere
None of those 'services' are supported by Anet.
They will never enforce people making missions, running or powerleveling for others by cash.
They will never enforce people making missions, running or powerleveling for others by cash.