It's funny how every time someone proposes a fork [1], these merge mining recommendations keep popping up.
FYI, what you're suggesting is what happened to CoiledCoin. While I would probably experience a tiny amount of schadenfreude if it happened to a fanatical 1MB minority Bitcoin fork, my sympathy for their right to fork off and pursue their dreams overrules that emotion.
Let's leave them (Core) in peace and not devote efforts to any attack. The way it looks to me, their coin is bound to fail on its economic premises and if they go POW change, on the realities of the Internet. And if they make it work against my expectations, then it probably deserves to live. Just like Gollum.
We don't wanna be like this vvvvv
[1] For a reverse take on this suggestion, see this proposal :
https://www.reddit.com/r/btcfork/comments/4xmhvp/noncontentious_alternative_to_a_fork_symbiosis/
FWIW, I don't see anything wrong with mining minority forks and selling those coins to purchase True Bitcoins
![Laugh :LOL: :LOL:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)