Fairfox: I don't get teh drama.
The drama comes from two things mainly:
1. Money is involved.
2. It is up to the user to recognize that there has been a double-charge, and complain about it.
If it was like that the double-charge would be fixed automatically even if the user didn't notice anything, then I guess it would be ok, just a tiny glitch. But if the user makes several failed purchase attempts for one game and gets charged multiple times for the game (that he didn't necessarily even get) and doesn't even realize he has been charged (multiple times)... yeah, you know, that sucks a lot.
At least for me it isn't necessarily that easy to check instantly whether I was charged. I need to wait some time before the charge appears to my credid card account, go to my online bank, and recognize from there if there are several charges for the same item. The first time this happened, it wasn't easy to recognize because it was a big sale where I had bought lots of games from GOG over several days, so the only way I could recognize which two (or more) charges were double charges was to see that they had the exact same amount charged by GOG. It is not like there is a message in the charge identififying which game was bought with it etc...
Anyway, I am happy this hasn't happened to me ever since. Anyway, to me things like these working 100% is much much MUUUUUUUUUUUUUUUCH more important that how some stupid forum chat, notifications or whatever works. Meh, who cares about all that useless shit, it is money that matters in this world.