Today Valve stopped accepting payments in Bitcoin on Steam, and I have to admit that their reasons for doing so are completely valid. I'm posting it here because DGB is the coin I've been supporting and this can be seen as an excellent case study on the use of cryptocoins in the real world, which applies to all of them.
Steam is no longer supporting Bitcoin (8 Dec 2017)http://steamcommunity.com/games/593110/announcements/detail/1464096684955433613