Hi everyone,
Glad that I was alerted about this thread, Lebowski our site essentially is a marketplace analogous to the comparison that ARTA brought up to eBay. However, regarding liability there are restrictions given the imperfect and asymmetric information that we deal with. We do our utmost to protect both buyers and sellers, hence have a disputation framework in place, as well as acting as a true intermediary between payment transactions. Thus, payments made by buyers go directly to us, such that sellers only get their payment after successful delivery of their service. This has been an effective tool to stop those looking to make money without actually providing any service.
Regarding the message you received, we had a Gran Turismo player interested in getting a livery done from a successful livery artist hence we reached out. Our ultimate aim is to have various sellers in the most popular games that could provide services that might otherwise be difficult to attain.
Let me know if you have any further questions!