It looks like to me that it has the same people behind it as the Bitcoin Unlimited, but it's only a couple months old:
https://www.bitcoinabc.org/ - Created Date: 2017-05-09
https://www.bitcoincash.org/ - Created Date: 2017-03-05
They want to do a 8 MB hardfork on August 1
Bitcoin Cash provides much needed relief to users with an immediate increase of the block size limit to 8MB.
On August 1st 2017, We the People will breathe new life into Bitcoin.
I wonder of "We the People", as in 40 billion $, will trust a 3 month old website and a lame copycat of the Bitcoin Core software. The Bitcoin Cash held by the forum won't be exchanged for bitcoins. I wouldn't ask you to write the idea off completely.
If Bitcoin doesn't handle scaling well, we could see some tired people heading for Bitcoin Cash.