I had the wrong path for old multibithd seeds. They must be done BIP39, possibly without encryption; using derivation path m'/0' multibit documentation here: https://www.youtube.com/watch?v=E-KcY6KUVnY&feature=youtu.be
Well, as I've mentioned before it's usually a problem with compatibility or the derivation path.the video from multibit is for electrum wallet not electrum cash but it is same procedure for electrum cash to get bch.
Of course, Bitcoin Cash is basically just stealing all the work from others without actually being capable of delivering something themselves.Remember to send your btc to new wallet made from a new seed first as stated by Theymos in the OP.. it would be such a shame to trade security for convenience;
Definitely.I think this may cause a decreasing feedback loop for bch. ..more people figure out how to spend their bch the more they will dump and the lower price will go 
All that shitcoin is good for is trading it in for some real money.