no swap, no good project

I would at least expect a swap of coins to the new blockchain. At least this would show some sort of respect and acknowledgement for the people who have already spent a lot of their money on electricity and rentals to mine this coin. If a new blockchain is created, it will be the same people that you want to mine it, and now they have been burnt and perhaps their trust lost.
Its always a risk to mine or buy new coins and no one can guarantee to recover spendings in such situation.
You may mine or not again it will not change devs decision as you see.
Anyway it's better get stable price than receive dump market at the beginning.
I assure you devs will not support market dumps with swap coins, everyone will dump to recover their needs and move away.
A very usual approach to every project. After all, why are people mining a specific coin? Of course, it is only one thing, so when the time comes, they can sell what they mined once it hit in exchanges. It is not that they will collect and hold this coin for long term. Because most alts lose their value up until no more is interested in buying the coin. So the earlier you get rid of the coin, the better on your end.