So if cryptocurrency does become regulated and businesses like exchanges are forced to implement security practices such as having most of their funds in cold storage, then who will decide what regulations should be implemented and how? Surely, it won't be the politician.
as in everything else, they'll defer to experts/advisors/lobbyists.
politicians---at least career politicians who manage to stay in office---don't have real opinions. their main job is gauging public perception and telling people what they want to hear. they may end up passing horrible regulations for cryptocurrency, especially since there isn't much of a pro-bitcoin lobby on capitol hill.
there's no way people like that would be involved in writing any laws. at most, you might see such characters in a congressional hearing answering questions from legislators, but nothing more than that. even that is a stretch.