Critics of Bitcoin XT say that the developers should just use a different name like other cryptocurrency systems, instead of trying to replace “Bitcoin.”
Even though the Bitcoin Foundation has played vital role in developing and popularizing the cryptocurrency, introducing a new blockchain may end up dividing the community. Furthermore, there is no “official” organization of this totally decentralized system and no one has the authority to “upgrade” the existing Bitcoin blockchain, critics say.
Check this interesting article at:
http://paymentweek.com/2015-8-25-bitcoin-xt-may-end-up-splitting-the-cryptocurrency-community-8146/