OP nobody is forcing you to mine ETHW. Do not claim your ETHW if you think they are scamming you. But I know you will sell it because at the bottom of your mind it is free money at zero effort.
The dumping started already. Price per ETHW was $4 an hour ago. I made another check and it is now at $5.17. Did it bottomed already? And just like BCH, whales will pump this coin for some gains. Many big miners are whales too, and together with the anti-Vitalik group, they will try to stabilize this coin.
I don't think it bottommed yet. The bottom will be once Binanace, Coinbase and a few other exchanges creddits their users and allows trading. Most likely it'll be a slow grind down. Then it'll find a bottom somewhere, trade for a few weeks and then some whales might end up pumping it if they feel like it.
Then it'll top out at $50 or $100, people will think it'll be the next real ETH and it'll peak like Bitcoin Cash did at like $3000-$4000 with retail holding the bag.