There simply aren't any players with that much cash at the moment. It's a gigantic pile of cash, by orders of magnitude larger than currently available in game. If one such a player wanted, I'm pretty sure he could form a group to collapse e.g. the precious metal market in a system. If you're determined enough, you can transfer cargo between group members to spread wealth and then upgrade with a plan to crash the market. This is something which takes a lot more effort normally and now just gets given for free. This sort of thing is the perceived problem: once you have a shared world, there will always be a certain amount of comparing between other players and the certain guarantee that other players have played by the same rules to have gotten where they are right now.I don't see how they are affecting the game for others any more than anyone who's already earned a large amount of credits. They still can't fly anything tougher than an Anaconda, or move more goods around than a Type-9, and there are many players who have already got those ships (and there will be more and more every day).
Sure, I get that these players don't have to worry about money (at least in the short term), and that can affect the way they play, but the possibilities for one player to directly and negatively affect another are pretty slim in this game. The worst anyone can do is blow you out of the sky, and you don't need billions of credits to do that.
Besides which, isn't other players affecting things kinda the point of an online game?
Essentially, I just don't see the big deal. It's clear that some people are very upset, but I just don't understand why.
I think the main difference is to whether or not this bothers you, is whether or not you approach this as mainly a single player game or more from an MMO-tradition. It doesn't bother me personally as I said before, but I understand how it could bother others and I even rationally can see how a member can use his cash to influence my game state in ways that he wouldn't be able to do if he hadn't been gifted the money. If he had earned the money through his own hard work, it would make it better, because he would then simply be the better / more dedicated player; now, he's just someone who has randomly been gifted 5 billion. That does make a difference in emotion, even if it doesn't make a difference in end result. And for some, this emotional element weighs heavier than for others. Me, I don't care so much. Others, they care more. And it is a legitimate concern, IMO.