I genuinely view this as a positive move. It will have some short term effect on Bitcoin prices, as it did on news that Google and Facebook were taking a similar stance.
BUT, the fewer opportunities for new and experienced investors to get scammed, the more faith the community will have in crypto and the greater the uptake will prove to be in the long term.
Unfortunately, we've just got to get over the initial FUD that this kind of story attracts.
RE: Twitter To Ban Cryptocurrencies