In all the forums discussing cryptocurrency that I've read there seems to be a common theme. On one side is a group of people angry with their government that want Bitcoin to change the things they hate about the system that controls them. On the other side are those that like the system so they bash Bitcoin and anything that might help change the system. The people who want change are now many (thanks to world wide financial mismanagement) and can't be stopped simply because one government or another decides to make some aspect of Bitcoin illegal. Even if Bitcoin ceases to exist these people will still hate their situation and spend their lives trying to change it. No, concepts can't become illegal so Bitcoin the concept will live until the struggle is over.
I'm a bit unusual in that I am kind of in awe of the current system. Though remarkably opaque and is increasingly abused, it is really something that a system so complex it works so amazingly well even for society as a whole (even while it works much better for the highest tier of course.) So, although I consider the current monetary systems 'a scam' to a large degree, it is a scam that has wide ranging benefits to many. In my humble opinion or course.
My interest in Bitcoin are several, but very high among these are my concerns about what lies around the corner. Our Western monetary systems, and most of the rest of the world's systems which are influenced by them are, I feel, stretched like a huge spring in order to keep the music playing. When the dam breaks it's going to be a awesome sight. Distributed crypto-currencies are a very interesting study in alternative systems. Probably the most important role they are playing (and by 'they' I mean 99% Bitcoin) is that they are proving that viable alternatives have some track record of function. It will not be possible to claim that SDR's or whatever are the only way forward if/when currency crisis fires are popping up everywhere.
It still may be possible to attempt to damage the function that distributed crypto-currencies posses, and I'll be very surprised if we do not see this attempted with a vengeance, and on a lot of fronts, if/when crises of various types pop up. Right now attacking Bitcoin would mostly give it an excuse to fail and produce a reasonable argument that absent attack, it could work OK.