So long as Bitmain's shitcoin is not named Bitcoin they can and should mine it, put all their miners on it and leave them there.

Good thing is if the hashrate drops a bit, or quite a bit, we'll all have a chance to mine ourselves.
So long as it doesn't upset network stability that much we should be fine.

Mining has become impossible for most people, last time I mined (mostly for fun and to learn more about it) was with Butterfly Labs (yes I did get mine, eventually), Bit Burners, and USB Erupters LOL
Soon after that it became too costly for small players like me to have a go.

One thing I'd like is transactions to be less expensive and Bitcoin to attract more users should really be inexpensive to use.

Let's see how things pan out...